* E_GetMaxAmountForArtifact added to account for artifact sub-type special cases (ie. ammo)
* Fast lookup facility for all ammo sub-type artifacts added.
* Special fast function for checking for player backpack token in inventory.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2589 86ba831e-150c-0410-ab35-e06eaae15ed9