fix: resource provider

[kuruk-mm]

• [x] New ResourceProvider (downloads and control cache in the folder)
• [x] Add concurrent downloads to 32 when is in loading screen, and return to 6 (like always) when is playing
• [x] Add Max Cache Size to the Settings
• [x] Load textures and audios from memory when it is possible (when it is not in the folder cache, and it is downloaded)
• [x] Test more and fix crash on iPhone

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 76.92308% with 129 lines in your changes missing coverage. Please review.

Please upload report for BASE (refactor/update-livekit@70366d0). Learn more about missing BASE report.

Files	Patch %	Lines
...traland-godot-lib/src/content/resource_provider.rs	82.32%	64 Missing :warning:
...ntraland-godot-lib/src/content/content_provider.rs	62.25%	57 Missing :warning:
rust/decentraland-godot-lib/src/content/audio.rs	0.00%	4 Missing :warning:
rust/decentraland-godot-lib/src/content/video.rs	0.00%	2 Missing :warning:
...ntraland-godot-lib/src/auth/dcl_player_identity.rs	0.00%	1 Missing :warning:
...ust/decentraland-godot-lib/src/av/video_context.rs	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## refactor/update-livekit #416 +/- ## ========================================================== Coverage ? 51.96% ========================================================== Files ? 162 Lines ? 19073 Branches ? 0 ========================================================== Hits ? 9911 Misses ? 9162 Partials ? 0 ```

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