*fix*
> [patches]
| [cmake] force use SH4A-NOFPU target
| [cmake] force LTO as default
| [cmake] use `sh-elf-vhex-gcc-ar` instead of `sh-elf-vhex-ar` to magically support LTO plugins
*add*
> [project]
| [README] first draft
| [git] ignore default files
> [scripts]
| [install] first installation operation support
> [patches]
| [openlibm] port Lephenixnoir sh3eb support
| [cmake] add custom build system for the openlibm
| [cmake] add toolchain support