Added better handling for v5.0.0+ and newer Androids.

[Schryzon]

Although being an albeit old project, I decided to hop on and introduced tiny bits of fixes:

• Uses in for .apk checks
• Checks for .ogg instead of .wav (because it doesn't work with mine on v5.2.0
• Difficulties are kept on strings because of plus (+) difficulties and α, β, γ new difficulty variants
• Some try and except(s) to ensure successful conversion (not fully tested)

Managed to gather 432 audios and converted them into .flac-extensioned files

It's a miracle how this still somewhat works... but you do need AssetRipper for the .ab files!

Thanks for the insightful project, and see ya!