AdminToolsMain update

Condensed the menu code more

Part of fix #205
Update to code viewer

It now shows the full key name for cars instead of just a number.
Ex. Displays Red374 instead of 2874
Code efficiency updates

Updated code by adding functions and exit sequences.

Part of fix #205
Crate improvements

Tested an improvement idea for faster spawn of crates. It was a success
with the backpack crate and will be implemented with other crates later.

Part of enhancement #204