Fix Mace Strike import and "Two Hand" naming on items

[Blitz54]

Fixes #1733
Fixes #981

Supersedes #1735

Description of the problem being solved:

• Renamed the base types of Maces, swords, and axes to "One Hand" and "Two Hand" instead of "Two Handed". PoE2 has the base type on the tooltip show as "One Hand Mace", different from PoE1.
• Import now gets the correct Mace Strike and Spear Stab skill, according to what is equipped in the offhand and main hand. It could be done better at a later point, as that section of code will get a little big when swords/axes/daggers are added.