Dagger of Bloodletting

Changed operation of daggers to now utilize 2 attribute modifiers.

• The first attribute Bloodletting controls the amount of lp an attack makes (ex. at 0.5 50% of the damage done will create lp)
• The second attribute Soulcap controls the max lp that can be in a player's soul network for lp to be added there instead of to an altar (does nothing if Bloodletting is 0)

This will mostly not impact players, but for pack devs should open new options for customization (ex. a helmet that when worn lets you generate lp with any attack or a pair of pants that gives 50% more to your Soulcap).

Some code cleanup.