Allow for setting aliases for scripts in the command palette

[YousufSSyed]

Instead of writing the full command or script name out, I'd like to set aliases for them, as short as 1-2 characters; and multiple aliases for each script.

[johnlindquist]

You can use:

// Trigger: aa
// Alias: bb

Trigger will run after you type: "aa"
Alias will run after you type "bb", then spacebar

We don't support multiple aliases