util/library: Allow loading of obs_module_t

[Xaymar]

Explain the Pull Request

Allows passing an obs_module_t to util::library::load in order to use a libOBS module as a library for functions. Aids in implementing other features, such as browser source widgets.

Completion Checklist

• This has been tested on the following platforms:
  • MacOS 10.15
  • MacOS 11
  • MacOS 12
  • Ubuntu 20.04
  • Ubuntu 22.04
  • Windows 10
  • Windows 11
• The copyright headers and license files have been updated.
• I will maintain this for the forseeable future, and have added myself to CODEOWNERS.

[Xaymar]

Apparently AppleClang has a definition for std::filesystem::path that initializes with void*, void, resulting in the previous code failing to compile, despite being correct according to the standard. No idea what void*, void could even be, but replacing the constructor with an obs_module_t* one should work the same.

For future people, the error is a generic cannot form a reference to 'void'. Just check that whatever you pass void* to doesn't have a magic constructor that is added by a compiler.