Patch Notes: Blades with pistols, and a spell in the free hand

A blade and a pistol

You can now hold a one-handed weapon in one hand and a Dwarven Pistolet in the other. Both are drawn and used, taking turns: swing, shoot, and keep swinging while the pistol reloads.
A pistol held beside a blade takes twice as long to reload - the other hand is busy with the blade.
With no Pellets left the blade keeps fighting, and you are told the pistol is empty.

With a one-handed weapon drawn and your other hand empty, a readied spell now sits in your free hand instead of putting the weapon away. The swing button swings the weapon; the cast button (left-click, the touch cast, or the hotbar) casts the spell - even while you hold the swing button down.
Sheathing keeps the spell readied; drawing again puts it back in the free hand.
Works with the classic sprites and the Morrowind model, and other players now see both your hands - a blade and a pistol, or a weapon and a spell.

MIXED-PAIR and SPELL-HAND: a blade with a pistol, a spell in the free hand - audited by @Lattymoy in #1175

Full Changelog: app-v0.1.10916...app-v0.1.10930