Fixed Mass reload spell not working properly

Asset update regarding the next mod I am working on.

- Small text fixes (Engineering wizardry / firework prototyping)
- Duration of skin oil from the Gyrocopter unit now lasts 2 tactical turns, instead of up until the end of battle
- Duration of Exposed from the Frostling Gyrocopter unit now lasts 2 tactical turns, instead of up until the end of the battle

Recycling of the living skill change :

- renamed "Recycling of the metal"
- can now only target Machine corpses.

Quick 2.1 update following discussions with Jowry :

- Musketeers now get the Sniper ability at gold rank, which makes them ignore ranged penalties on their ranged attacks.
- Armor piercing ability was moved to Veteran rank

Update 2.0 Hero rework is out, along with some small improvements :

- New Strategic spell, "Electrostatic Charge", which adds a temporary Charge ability to your machines.

- Proper icon with transparency for the Gyrocopter; new icon for Mana fuel gold mine

- A new sidegrade of Gyrocopter was created for the Frostling race, with an ability replacement for Oil Burst because the latter does not synergize well with the Frost Tank :
- Artificial Frost Patch- All units in a 2-hex area are affected by Exposed for 2 Turns

- Both Oil Burst and Frost Patch are now baseline abilities, and have become standard reload abilities. Explosive death has been moved to veteran medal instead.

- Complete rework of the Hero skill tree system, see following link for a detailed description : https://gtm.steamproxy.vip/workshop/filedetails/discussion/1789568568/3368152931578976964/

- Gyrocopter gets Oil Blast at veteran rank (instead of elite)
- Gyrocopter gets Emergency reactor at elite rank (instead of veteran)

Compatibility update:

The Racial link data for the Gyrocopter unit has been moved out of native RPK file to improve compatibility with other mods for the following races:

- High Elf
- Draconian
- Orc
- Human
- Goblin
- Dwarf

V1.1

- Balance- Mini-nerf on the Reactor ability of the Gyrocopter- now leave one action point only after use.
- Balance- Mini-up for Engineer- now gain the electro-Belt ability at Gold rank (similar to the ability given by Artificer guild)

1st Version of the Mod