Add Windows make equivalent

[foster999]

Adds a make.bat file to mimic the action of Makefile on Windows. Run using make in the same directory as make.bat.

This make.bat was generated using make-to-batch, however, there are a additional steps needed after conversion:

• Substitute python3 with python
• Remove or replace .DEFAULT_GOAL with a batch equivalent
• Replace the syntax for creating a clean directory (under prepare_docs_folder in this case)

Ideally, these would be rectified by a series of shell commands, so that the make.bat can be reproducibly generated when the Makefile changes. The same steps should work for converting the current Makefile at the project root too, if this is useful for development of the template on Windows.

@Kiki-Jiji I don't have easy access to unix at work, so any help with the above would be very welcome 😄