CLEANUP: cleans up dependencies to use workspace version

CLEANUP: standardizes on pretty_env_logger
NEWBIN: Adds gemmarat to use Ratatui as an interface
CLEANUP: removes debugging display from computer.rs
ENHANCEMENT: Constants for locations of test roms built from environment
BUGFIX: SoundTimer was using i32 internally when it needs to be u8
CLEANUP: removes commented code used during diagnostics

gemmautil/Cargo.toml

@@ -8,3 +8,5 @@ gemma = { path = "../gemma" }
 clap.workspace = true
 pest = "2.7.14"
 pest_derive = "2.7.14"
+pretty_env_logger.workspace = true
+log.workspace = true