Replace co8 ini files

[DudeMcDude]

co8_config.ini
speedup.ini
test_mode.ini
delayed_blast_fireball.txt

These files contain:

• content-specific configs (e.g. Disable Reactive Temple Mod)
• spell rules variants
• generic configs like run speed (this one should be replaced by a general setting)
• test mode configs

Ideally we should allow each module maker to specify content-specific configuration options ala templeplus.ini and these should appear as configurable options in the menu.

For the short term we'll just add subsections to templeplus.ini. We need a way to expose these to the gameplay however.

I allowed myself to just remove the delayed_blast functionality (who uses that anyway), the rest need to be added to Templeplus.ini