Some lua and awesome improvements

- Move lgi to luaPackages
- Use luaPackages in awesome and passthru lua
- Allow to pass lua modules to the awesome WM so that those can be used in the configuration

pkgs/development/libraries/lgi/default.nix

@@ -1,24 +0,0 @@
-{ stdenv, fetchurl, pkgconfig, gobjectIntrospection, lua, glib }:
-
-stdenv.mkDerivation {
-  name = "lgi-0.7.2";
-
-  src = fetchurl {
-    url    = https://github.com/pavouk/lgi/archive/0.7.2.tar.gz;
-    sha256 = "0ihl7gg77b042vsfh0k7l53b7sl3d7mmrq8ns5lrsf71dzrr19bn";
-  };
-
-  meta = with stdenv.lib; {
-    description = "Gobject-introspection based dynamic Lua binding to GObject based libraries";
-    homepage    = https://github.com/pavouk/lgi;
-    license     = "custom";
-    maintainers = with maintainers; [ lovek323 ];
-    platforms   = platforms.unix;
-  };
-
-  buildInputs = [ glib gobjectIntrospection lua pkgconfig ];
-
-  preBuild = ''
-    sed -i "s|/usr/local|$out|" lgi/Makefile
-  '';
-}