add github CI to all frida repos

[milahu]

#452 (comment)

That reminds me we desperately need some CI for this repo

ideas for building, caching and sharing artifacts between github repos?

something like
https://hunter.readthedocs.io/en/latest/user-guides/hunter-user/github-cache-server.html
https://github.com/cpp-pm/hunter

the dependency graph looks something like

frida-core
  frida-usrsctp
  frida-glib
  frida-compiler-agent
  frida-gum-dts
  frida-gum
    frida-vala
    frida-glib-networking
    frida-tinycc
    frida-v8

ideally, new successful builds should trigger a rebuild of the parent

or do all of this in https://github.com/frida/frida?