Added a reload command and changed from paper (paper-plugin.yml) to bukkit (plugin.yml)

commands:

/rocketjumping reload

permissions:

rocketjumping.reload

Version 1.2-1.21

The first version of RocketJumping, the config has boostPower which specifies how much the rocket boosts you, and damageShooter which decides whether or not the shooter should get damaged by their rockets