Generate API documentation automatically

[yotamN]

Instead of duplicating the API documentation, we could generate the documentation from the code itself.
Of course for each language there is a different tool that will need to be adapted:

• typedoc for JavaScript
• pdoc / pdoc3 for Python*
• swiftdoc for Swift?

* doesn't support stub files, when Frida drops support for Python 2 we could merge the stub files into the python files