Fixes #19 by continuing to listen for layout/pre-draw events until a valid size is discovered, or the drawer is destroyed

[mattsilber]

Fixes #19 by continuing to listen for ViewTreeObserver.OnGlobalLayoutListener/ViewTreeObserver.OnPreDrawListener events until a valid size (width and height both greater than 0) is discovered, or the drawer is destroyed (via ScratchoffController#onDestroy -> ScratchaboutLayoutDrawer#destroy).

To enable this new behavior, call setKeepListeningForDrawUntilValidSizeDiscovered with a value of true. Note that this will override the configuration of setAttemptLastDitchPostForLayoutResolutionFailure introduced with 3.0.0.

Assuming this solves #19 at scale, and doesn't introduce any new issues, it will become part of the default behavior in 4.x.

[codecov]

Codecov Report

Attention: Patch coverage is 90.19608% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 83.76%. Comparing base (45fa3b0) to head (ac93aed).

Files	Patch %	Lines
...jackpocket/scratchoff/ScratchableLayoutDrawer.java	93.47%	0 Missing and 3 partials ⚠️
...om/jackpocket/scratchoff/ScratchoffController.java	60.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #74      +/-   ##
==========================================
+ Coverage   80.80%   83.76%   +2.96%     
==========================================
  Files          10       10              
  Lines         625      659      +34     
  Branches       75       81       +6     
==========================================
+ Hits          505      552      +47     
+ Misses         87       73      -14     
- Partials       33       34       +1     

Flag	Coverage Δ
unit	83.76% <90.19%> (+2.96%)	⬆️

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