C-Salt v0.9.1: Pipeline Overhaul, Missing Features Added, and Pre-compiled Support

What's Changed (Chronological Order)

• Added csalt to Crates.io.
• Added --path to nearly all commands which depend on the current directory.
  • This allows you to finally call csalt from other directories without an error!
• Added --zig-target or -z for explicitly telling zig cc to cross-compile.
• Changed many CLI messages and errors to read more clearly and neatly.
• Removed unnecessary main field from Salt.toml.
• Added unused compiler_flags, linker_flags, and many other features which had not been added previously.
• Added the ability to use pre-compiled units known as extlib and extdyn within the C-Salt unit pipeline.
  • WARNING: extdyn is known to have specific issues. See issue #23 for more.
• Added support for all CMake versions above 3.15.
• Added -DCMAKE_C_COMPILER={} into the csalt build command.

In-development Notice

This is not a stable version. Everything is subject to change, and may potentially break. Do not use this on already existing C repositories until you have copied it for C-Salt to use.