Automatically build tools required to compile

[0xb01u]

Equivalent to my latest PR on the MZM repo.

To note:

• Heavily inspired by pokeemerald's build system.
• The typo on the original PR is already fixed.
• This does not automatically extract the data from the ROM. That part was not automatized, and is required to be done before compiling (e.g., make extract && make -j). Let me know if you would like to have that automatized too, and I'll update the PR.
• I am open to any suggestions on how to improve the PR, as I am not the best when it comes to Makefile.