Small bug fixing update for prologue black screen bug.

V0.1cQuickfix:

- Change lover's name at the beginning - Default: Eric
- Game Mechanic - Orb exchange in Knights' Headquarters
- Game Mechanic - Weapon and Armor Upgrade at Blacksmith
- Added Teleport Stone to Voxwal Mines - Secret Entrance, usable after first contact.
- Reduced Voxwal Mine - Floor 6 Warps to half.
- Added plugin "Conditional Choice by WinterDream Games Creator", for added functionality.
- Virethra Shop and Pub items changed.
- Bug fix - Intro event ending with black screen fixed
- Bug fix - Monster sexual events increase counters now
- Bug fix - Corruption counter fixed