Rewrote, rebalanced, and added many weapon egos

Two-handed wepaons now have a small eqo multiplier
Daggers now have a small ego penalty
Gaping maw is now anti-magic
Withering orbs and allettas diadem now psionic
Halfling foot now arcane, hareskin sling now nature
Stop talent now properly accounts for paradox level
Foresight now properly senses actors
Greater weapon egos generally less powerful
Lesser weapon egos generally more powerful
New anti-magic egos
Resolve equilebrium and stamina regen more in line with other forms of regen for these resource types
Added costs to ranged egos
Set many artifact material levels to be more in line with their level range (should improve drops)
Buffed many artifacts
Reduced infravision given by many items
Infravision and heightened senses no longer stack
Fixed cease to exist double paradox cost



git-svn-id: http://svn.net-core.org/repos/t-engine4@4954 51575b47-30f0-44d4-a5cc-537603b46e54