avm2: Workaround haxe calling addChild(this) before super()

tests: Extend loader_applicationDomain test

avm2: Ignore XML comments and processing instructions by default

This matches the default value of the settings on XML.

i18n: Update zh-tw (ruffle-rs#9749)

avm2: Store interfaces from superclases/superinterfaces in ClassObject (

ruffle-rs#9728)

web: Use TypeScript project references

This slightly improves TypeScript build times, and allows LSP to work
across packages without building `ruffle-core`.

Official documentation at:
https://www.typescriptlang.org/docs/handbook/project-references.html

avm2: Use a lookup table for cosine in SoundMixer.computeSpectrum()

This results in 128 times fewer calls to the builtin cosf function.

avm2: Iterate the inheritance chain for class-symbol linkage

swf: Introduce `ConvolutionFilterFlags`

core: Implement Color::to_premultiplied_alpha without floats