Windows compilation package needs PIP+Sphinx+RTD

[Firehawke]

As it stands, the official Windows compilation package doesn't include the necessary tools to compile the MAME documentation by default. This is a fairly major oversight that I think we could stand to get corrected.

[vadosnaprimer]

Observations (using mingw32 provided by mamedev, after getting sphinx using pip):

• rtd isn't actually needed
• texinfo target needs texinfo to be installed via pacman
• doctest requires 'sphinx.ext.doctest' in conf.py extensions
• Making latexpdf was a pain to build. Requires installation of something like texlive: minimal+windows, then installing latexmk, collection-fontsrecommended and collection-latexextra using tlmgr.bat. The latter is very huge, but without the full thing latexmk fails to see fncychap.sty even if it's installed. Also binaries won't be seen until /c/msys64/usr/local/texlive/2017/bin/win32 is added to PATH.
• Makefile might have the all target as well

[vadosnaprimer]

Is this resolved as of 3184bed?

[cuavas]

Yeah, it is now possible to build the docs including HTML, EPUB and PDF versions with an MSYS2 setup without resorting to using pip or other sources for the SVG converter and LaTeX setup. This can be closed.