Convert the original armature instead of the copy

[chinedufn]

Right now we

1. Duplicate the mesh/armature

2. Convert the copy's bones into FK

The problem is that the copy has bones named like Bone.001 which forces you to write scripts / tooling that accounts for these name changes.

We should instead convert the original armature so that the bone names are preserved (and still keep the duplicates around as a backup in case someone was using the script manually and something went wrong and they saved)