Add client support for Windows, MacOS, Linux and more

[tobycm]

Platforms

Works right out of the box:

• Windows
• macOS

Tweaks needed:

• Linux
• FreeBSD
• OpenBSD
• Android
• iOS
• WebAssembly
• Nintendo Switch
• Xbox

(https://github.com/ebitengine/oto?tab=readme-ov-file#platforms)

[tobycm]

Closes #12

[mkckr0]

I'm sorry that I don't want to merge it due to following reasones:

• The client implementation on Linux/Windows should base on server-core. So there can be only one C++ library. Then GUI or others can easily use it.
• The protocol is not stable because some new features need to modify it. That's also the reason why the development of client is postponed to last.
• The ebitengine/oto use ALSA as backend on Linux. It's not consistent with PipeWire.
• This project initially only supported Windows. Then port to Linux with testing on virtual machine. I have no conditions or time to test or maintain for other platforms.

I suggest you maintain these codes on your fork or let it become an independent project.