Add elevation data to all route GPX files

[nickswalker]

Tags each GPX point with elevation data from USGS's Elevation Point Query Service. The CSV of manual totals is left unchanged.

The US Geologic Survey collects and provides the best elevation data available. Most of the 1m (1 elevation value per 1m^2 area) resolution data around Seattle was collected only within the past 3 years. Here's the UW tile, which was only published in 2023:

Common/free sources (e.g. Mapbox's Terrain DEM, or the MapZen or TileZen joerd, aggregated tiles used by OnTheGoMap and similar) use older (~2017) lower resolution data.

The new data adds 23m of gain or descent on average to the manual values. The outliers seem to be largely routes that go through the I90 tunnel, so we should leave manual values for those. I think I trust the new data for the rest.

Here's the table of comparisons.

id	mismatchType	original	new	delta
bainbridge-coast-to-coast-loop	ascent	511	457	-54
bainbridge-coast-to-coast-loop	descent	511	457	-54
beacon-cheasty-lwb-genessee-cc	ascent	91	110	19
beacon-cheasty-lwb-genessee-cc	descent	139	158	19
beacon-cheasty-lwb-seward-cc	ascent	139	177	38
beacon-cheasty-lwb-seward-loop-cc	ascent	151	210	59
beacon-i90-bridge-cap-hill	ascent	246	363	117
beacon-i90-luther-burbank-ob	ascent	348	448	100
blyth-park-tolt-pipeline-trail-full-ob	ascent	926	975	49
blyth-park-tolt-pipeline-trail-full-ob	descent	926	975	49
cap-hill-i90-ob	ascent	255	372	117
cap-hill-i90-trail-lwb-arborlaken-loop	ascent	370	387	17
cap-hill-ship-canal-salmon-bay-burke-cse	ascent	99	116	17
cc-genessee-lwb-north-ob	ascent	70	86	16
cc-genessee-lwb-rainier-loop	ascent	108	130	22
cc-genessee-lwb-seward-loop-ob	ascent	99	134	35
cc-genessee-lwb-seward-loop	ascent	120	171	51
cid-i90-trail-south-bellvue	ascent	216	268	52
cid-i90-trail-south-bellvue	descent	214	268	54
cid-marginal-alki-sodo	ascent	92	116	24
colman-park-lwb-seward-loop-ob	ascent	32	13	-19
cougar-airshaft-wilderness-falls-loop	ascent	933	823	-110
cougar-airshaft-wilderness-falls-loop	descent	933	823	-110
cougar-ellis-loop	ascent	855	823	-32
cougar-ellis-loop	descent	855	823	-32
cougar-north-loop-01	ascent	264	247	-17
cougar-north-loop-01	descent	264	247	-17
cougar-south-loop-01	ascent	494	448	-46
cougar-south-loop-01	descent	494	448	-46
cse-520-bell-dtwn	ascent	139	165	26
cse-520-ckc-sammamish-river-marymoor	ascent	206	253	47
cse-520-eastrail-bell-dtwn	ascent	178	226	48
cse-520-eastrail-mercer-slough-i90-lwb-arb-loop	ascent	537	518	-19
cse-520-eastside-parks-south-bellevue	ascent	356	384	28
cse-520-ob	ascent	110	180	70
cse-520-trail-redmond-tech-center	ascent	261	283	22
cse-520-wetherill-ob	ascent	195	216	21
cse-arb-lwb-cc	ascent	162	204	42
cse-arb-lwb-i90-trail-beacon	ascent	282	338	56
cse-arb-lwb-i90-trail-stairs-beacon	ascent	274	335	61
cse-arb-lwb-mt-baker	ascent	143	174	31
cse-arb-lwb-seward-cc	ascent	204	262	58
cse-arb-lwb-seward-loop-cc	ascent	216	290	74
cse-arb-mercer-westlake-burke-loop	ascent	245	265	20
cse-arboretum-azalea-way-ob	ascent	111	127	16
cse-arboretum-interlaken-loop	ascent	139	155	16
cse-arboretum-interlaken-portage-bay-loop	ascent	228	247	19
cse-foster-arboretum-interlaken-bay-loop	ascent	161	201	40
cse-foster-arboretum-interlaken-loop	ascent	162	183	21
cse-foster-arboretum-loop	ascent	165	177	12
cse-foster-arboretum-montlake-loop	ascent	119	135	16
cse-foster-arboretum-ob	ascent	116	134	18
cse-gas-works-ob	ascent	43	75	32
cse-jays-cafe	ascent	51	125	74
cse-lake-union-loop	ascent	103	122	19
cse-lake-union-stone-green-lake-ravenna-loop	ascent	183	195	12
cse-lwb-cc	ascent	181	198	17
cse-lwb-colman-park-ob	ascent	253	296	43
cse-lwb-frog-pond-i90-trail-sodo	ascent	216	277	61
cse-lwb-sailing-club-ob	ascent	260	317	57
cse-lwb-seward-loop-ob	ascent	283	351	68
cse-lwb-seward-ob	ascent	271	323	52
cse-magnuson-ob	ascent	84	116	32
cse-magnuson-park-loop-ob	ascent	129	158	29
cse-portage-bay-lake-union-loop	ascent	133	165	32
cse-portage-bay-loop	ascent	99	120	21
cse-ravenna-loop-ob	ascent	95	118	23
cse-woodinville-cafe	ascent	115	186	71
gas-works-around-green-lake-ob	ascent	99	119	20
gas-works-ballard-bridge-ship-canal-loop	ascent	39	64	25
gas-works-green-lake-ob	ascent	92	109	17
gas-works-kotkins-pier-salmon-bay-loop	ascent	81	98	17
gas-works-lake-union-loop	ascent	79	92	13
gas-works-queen-anne-loop	ascent	231	253	22
green-lake-gas-works-ob	ascent	106	123	17
green-lake-loop	ascent	13	28	15
green-lake-ravenna-burke-stone-loop	ascent	106	131	25
green-lake-ravenna-calvary-cemetery-ob	ascent	132	155	23
locks-discovery-loop	ascent	274	290	16
locks-discovery-magnolia-discovery-ob	ascent	357	402	45
locks-discovery-magnolia-interbay-loop	ascent	254	268	14
locks-discovery-radar-magnolia-discovery-ob	ascent	264	302	38
locks-fremont-bridge-loop	ascent	63	78	15
locks-golden-gardens-ob	ascent	17	51	34
locks-magnolia-elliott-bay-cranes-alki	ascent	211	247	36
lord-hill-end-to-end-viewpoint-loop	ascent	694	604	-90
lord-hill-end-to-end-viewpoint-loop	descent	694	604	-90
madrona-park-lwb-madison-beach-ob	ascent	71	103	32
madrona-park-lwb-sailing-club-ob	ascent	45	103	58
miller-interlaken-ob	ascent	125	167	42
miller-judkins-i90-bridge-ob	ascent	166	283	117
northgate-bitter-lake-ob	ascent	145	158	13
northgate-carkeek-ob	ascent	207	219	12
northgate-cemeteries-interurban-boeing-creek-ob	ascent	335	305	-30
pacpav-kinnear-kerry-queen-anne-loop	ascent	175	189	14
pacpav-lake-union-loop	ascent	150	168	18
redwater-loop	ascent	147	162	15
redwater-loop	descent	147	162	15
roosevelt-carkeek-phinney-ridge-loop	ascent	281	268	-13
roosevelt-cse-p2p	ascent	91	103	12
roosevelt-cse-p2p	descent	126	137	11
roosevelt-magnuson-loop	ascent	312	323	11
seward-park-loop	ascent	12	52	40
sodo-alki-beach-drive-puget-park-loop	ascent	281	293	12
sodo-alki-beach-half-ob	ascent	95	119	24
sodo-alki-beach-little-liberty-ob	ascent	91	119	28
sodo-alki-camp-long-chinese-garden-loop	ascent	362	347	-15
sodo-alki-lincoln-duwamish-loop	ascent	393	427	34
sodo-alki-schmitz-andover-loop	ascent	244	259	15
sodo-luna-pier-ob	ascent	82	98	16
sodo-mts-sound-i90-trail-ob	ascent	170	247	77
south-discovery-magnolia-elliott-bay-cranes-alki	ascent	106	155	49
wash-park-interlaken-ob	ascent	80	145	65
wash-park-lwb-mt-baker-beach-ob	ascent	117	168	51
wash-park-lwb-sailing-club-ob	ascent	126	189	63