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

gemmaimgui/Cargo.toml

@@ -6,8 +6,8 @@ edition = "2021"
 [dependencies]
 gemma = { path = "../gemma" }
 pretty_env_logger.workspace = true
-rand.workspace = true
 log.workspace = true
+rand.workspace = true
 chrono.workspace = true
 dimensioned.workspace = true
 clap.workspace = true