REPLAY-1890: Implement pool of reusable bitmaps

[jonathanmos]

What does this PR do?

Adds a reusable bitmap pool for base64.

Motivation

Reduce the number of new bitmaps created.

Additional Notes

Anything else we should know when reviewing?

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[codecov-commenter]

Codecov Report

Merging #1554 (227afe9) into feature/base64-jmoskovich (dcd6805) will decrease coverage by 0.30%.
The diff coverage is 65.65%.

❗ Current head 227afe9 differs from pull request most recent head 8002635. Consider uploading reports for the commit 8002635 to get more accurate results

@@                      Coverage Diff                      @@
##           feature/base64-jmoskovich    #1554      +/-   ##
=============================================================
- Coverage                      83.63%   83.32%   -0.30%     
=============================================================
  Files                            439      443       +4     
  Lines                          14977    15070      +93     
  Branches                        2258     2272      +14     
=============================================================
+ Hits                           12525    12557      +32     
- Misses                          1879     1923      +44     
- Partials                         573      590      +17     

Files Changed	Coverage Δ
...nreplay/internal/async/RecordedDataQueueHandler.kt	88.52% <ø> (-0.87%)	⬇️
...ndroid/sessionreplay/internal/utils/Base64Utils.kt	66.67% <0.00%> (ø)
...android/sessionreplay/internal/utils/CacheUtils.kt	0.00% <0.00%> (ø)
...id/sessionreplay/internal/recorder/base64/Cache.kt	25.00% <25.00%> (ø)
...nreplay/internal/recorder/base64/Base64LRUCache.kt	84.85% <33.33%> (+13.42%)	⬆️
...ssionreplay/internal/recorder/base64/BitmapPool.kt	61.97% <61.97%> (ø)
...roid/sessionreplay/internal/utils/DrawableUtils.kt	96.97% <92.86%> (-3.03%)	⬇️
...eplay/internal/recorder/base64/Base64Serializer.kt	88.73% <100.00%> (+0.85%)	⬆️
...y/internal/recorder/base64/WebPImageCompression.kt	90.00% <100.00%> (ø)
...id/sessionreplay/internal/utils/InvocationUtils.kt	100.00% <100.00%> (ø)

... and 11 files with indirect coverage changes

[mariusc83]

I like the idea of backing up the BitmapPool with an LruCache. There are still things to address in here but the idea works.