[Bf-committers] Get Cmake on-par with scons (docs, batch files and configuration scripts)

[Campbell Barton]

Committed make.bat for windows devs, it follows our makefile for linux/osx.
https://developer.blender.org/diffusion/B/browse/master/make.bat

Example Use

Build with most options enabled (as for Linux/OSX), simply:
  make
Build with all release options:
  make full
Build with debug, and few options:
  make debug lite

If you have git & svn in your PATH
  make update

Currently not too verbose:
  make --help