Key remapping with CLI arguments

[Gatongone]

Is your feature request related to a problem? Please describe.
I'm requesting the ability to parameterize the key mappings used for a single 'spf' command so that I can use the custom key mappings the user is used to on the VIM without having to manually modify the TOML configuration.

Describe the solution you'd like

spf --bind "y:copy_items" --bind "d:delete_items"

Describe alternatives you've considered
I tried to create a temp hotkeys.toml file every time I startup vim. But it's obviously not elegant.

Additional context
Nah~