Another huge amount of changes, I really need to stop doing these bulk commits....

Let's see:
AI stuff -
- Armed Grenadiers (Grans) with wp_melee will now punch you every second
or two at point blank range even with a saber out
- Code in place but not working yet for melee cultists to push/dodge
missiles and explosives
- Code in place but unused/not working for Stormtrooper based NPCs to
use close-range punches
- Class_Imperial commander ranked NPCs and Class_Rodian NPCs with
WP_Blaster use burst fire

Saber dueling:
- Saber Offense level controls an attacker's knockaway recovery speed
when their attack is broken (done through the code using
saberAnimSpeedModifier)
- Special attacks should use an either it-breaks-or-it-is-blocked
property ignoring the combo counter (untested)

Other:
- WP_melee now does 7/5 damage for the player (right hand/left hand)
- only Class_Gran, Class_Trandoshan, and Chewie NPCs get heavy melee now
(the really strong punches)
- All other NPCs should punch faster but do the same damage as the
player per punch
- g_debugmelee 1 and regular WP_MELEE have the same punching speed now
- holding use disables saber throw (eventually this should let you throw
kicks instead of saber throwing)