Added new enemy type: Sorcerer! Sorcerer is the first enemy type with a long range attack

• Increased max rank.
• Buffed later stage orcs to increase challenge.
• Reworked melee unlocks.
• Fixed melee unlock glitch.
• Further nerfed AOE abilities.
• (More upgrades will now be needed to reach the same level as before.)
• Improved spawn times (more needs to be done however...)
• Nerfed armor upgrades.

TODO:
Spawning will need more work to make it a better “wave like” approach.