[Ohrrpgce] SVN: james/7138 Remove hmask() bitset array and replace it with gam.hero().locked

[subversion at HamsterRepublic.com]

james
2015-04-17 10:37:38 -0700 (Fri, 17 Apr 2015)
289
Remove hmask() bitset array and replace it with gam.hero().locked
Also fix a bug where addhero() was zeroing the hmask bit using the hero id when it should have been using party slot

This probably caused a few obscure bugs where a hero was incorrectly unlocked after adding another hero.
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U   wip/bmod.rbas
U   wip/game.bas
U   wip/game_udts.bi
U   wip/gglobals.bi
U   wip/moresubs.rbas
U   wip/savegame.rbas
U   wip/yetmore.bas