• Moved all hardcoded combo instruction values to the language file config.
• Changed default getInstructions() method to change the path if it's a combo in order to get the correct configuration value.
## Additions
* Implements the Attribute annotation for all applicable fields in every ability class (some abilities have multiple classes)
## Fixes
* Fixes FireShield not dealing firetick (options weren't set as defaults in the config)
## Removals
* Removes all RPG references and the ProjectKorraRPG.jar from the libs folder in the project and as a maven dependency
* Removes all Items references and the ProjectKorraItems.jar from the libs folder in the project and as a maven dependency
* Removes all Spirits references and the ProjectKorraSpirits.jar from the libs folder in the project and as a maven dependency
## Misc. Changes
* Changes various config options and field names to be more self-explanatory
> * In AirStream: `EntityHeight` and `EntityDuration` were changed to be `EntityCarry.Height` and `EntityCarry.Duration` (also changed in AvatarState portion)
> * In IceSpike: `SlowPower` was changed to `SlowPotency` (also in the Blast portion) and `Field.Push` was changed to `Field.Knockup`
> * In WaterSpout.Wave: `FlightTimer` was changed to `FlightDuration`
> * In Bloodbending: `ThrowFactor` was changed to `Knockback` and `HoldTime` was changed to `Duration`
> * In HealingWaters: `Power` was changed to `PotionPotency` and `HealingDuration` was removed
> * In Surge.Wave: `HorizontalPush` was changed to `Knockback` and `VerticalPush` was changed to `Knockup`
> * In Torrent: `Push` was changed to `Knockback` and `MaxUpwardForce` was changed to `Knockup`
> * In WaterArms: `Punch.PunchDamage` was changed to `Punch.Damage` and `Grab.HoldTime` was changed to `Grab.Duration` and `Spear.Sphere` was changed to `Spear.SphereRadius`
> * In WaterManipulation: `Push` was changed to `Knockback`
> * EarthSmash has been separated better into portions of `Flight`, `Grab`, and `Shoot`
> * In EarthSmash: `RemoveTimer` was changed to `Duration`
> * MetalClips has been separated better into portions of `Crush` and `Magnet`
> * In EarthPillars: `Power` was changed to `Knockup`
> * In Combustion: `Power` was changed to `ExplosivePower`
> * In FireBlast: `Push` was changed to `Knockback`
> * Added separate cooldown option for Charged FireBlast
* Changed some abilities constructor to allow Attribute system to work
