[ENH] Add ingest dispatch + scheduler + segment #2211

Job	Run time
test (3.8, ubuntu-latest, --ignore-glob 'chromadb/test/property/*' --ignore='chromadb/test/test_c...	5m 57s
test (3.8, ubuntu-latest, chromadb/test/property/test_add.py)	3m 25s
test (3.8, ubuntu-latest, chromadb/test/test_cli.py)	2m 5s
test (3.8, ubuntu-latest, chromadb/test/auth/test_simple_rbac_authz.py)	3m 9s
test (3.8, ubuntu-latest, chromadb/test/property/test_collections.py)	3m 2s
test (3.8, ubuntu-latest, chromadb/test/property/test_cross_version_persist.py)	10m 20s
test (3.8, ubuntu-latest, chromadb/test/property/test_embeddings.py)	18m 3s
test (3.8, ubuntu-latest, chromadb/test/property/test_filtering.py)	3m 34s
test (3.8, ubuntu-latest, chromadb/test/property/test_persist.py)	17m 21s
test (3.8, windows-latest, --ignore-glob 'chromadb/test/property/*' --ignore='chromadb/test/test_...	1m 34s
test (3.8, windows-latest, chromadb/test/property/test_add.py)	1m 45s
test (3.8, windows-latest, chromadb/test/test_cli.py)	1m 54s
test (3.8, windows-latest, chromadb/test/auth/test_simple_rbac_authz.py)	1m 10s
test (3.8, windows-latest, chromadb/test/property/test_collections.py)	1m 37s
test (3.8, windows-latest, chromadb/test/property/test_cross_version_persist.py)	1m 53s
test (3.8, windows-latest, chromadb/test/property/test_embeddings.py)	1m 39s
test (3.8, windows-latest, chromadb/test/property/test_filtering.py)	1m 21s
test (3.8, windows-latest, chromadb/test/property/test_persist.py)	1m 24s
	1h 21m 13s

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