Expand SC Config
* Added SCF_FAILED_IMMUNITY flag: Failed to be applied if target has immunity by Golden Thief Bug Card's effect or Wand of Hermode
* Added optional fields for sc_config_db.txt:
  * MinDuration: Minimum duration of SC should be applied after all SC status/bonus resistances.
  * MinRate: Minimum rate of SC should be applied after all SC status/bonus resistances
* Removed some hardcodes related teh changes above

Misc
* Follow up 0d2ed0a, removed unused files! (how come they were staged? I never did that ._.)

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>