Move fastdwarf/teledwarf to separate commands

[lethosor]

There's no need to move teledwarf to a separate plugin, but a separate command could be less confusing and would allow teledwarf to be toggled without figuring out what the current fastdwarf state is and specifying it as well.
@expwnent looks like you added teledwarf originally - what do you think?

[PeridexisErrant]

Sounds good to me.

The superdwarf script is equivalent to (optionally) per-dwarf fastdwarf, which is probably pretty slow (since it iterates every tick). That function should probably be built into the plugin instead.

[expwnent]

Yeah, I approve.