Add support for compiling to various console targets

[Astral-C]

Adds a Makefile and some modifications to template's main.c to support Nintendo Switch.

Requirements:

• devkitpro
• devkitpro pacman
• switch-dev
• switch-sdl2
• switch-sdl2_mixer
• switch-sdl2_image
• switch-sdl2_ttf

References for environment setup portlibs docs devkitpro pacman devkitpro getting started