win32: Update MSVC projects for glib-genmarshal
glib-genmarshal is now a Python script instead of a compiled program, so we need to: -Remove the projects that are used to build the glib-genmarshal sources. -Generate the full glib-genmarshal Python script from glib-genmarshal.in -Make Python a hard build-time requirement, since we use this tool in many parts of the stack (and it is the case for glib-mkenums). -Tell people in the Visual Studio build README.txt files that Python 2.7.x or 3.x is now required for the build/"install".
Showing with 141 additions and 488 deletions