Implement two more mission types + tweaks & fixes

* Weapons will consume your batteries fully.
* Nerfed enemy damage at lower levels.
* Further reworked drain, uses a static variable as a timer (lastDrainTime)
* resendMobHP has been repurposed to drainMobHP.
* Players heal faster after a sizable cooldown.
* Nano type advantage is more noticeable during combat.

Implemented two more mission types + Tweaks

* Item delivery quests now work.
* Timed missions now work.
* All escort missions (type 6) are skipped.
* /minfo now also prints the terminator npc.
* Weapon battery consumption tweaked
* Fixed indentations.
* Heal nanos have better output (25% -> 35%)
* Damage formula had a slight tweak.
* Bugfixed weapon equipping.
* Other tweaks

src/Player.hpp

@@ -50,6 +50,7 @@ struct Player {
 
     bool inCombat;
     bool passiveNanoOut;
+    int healCooldown;
 
     int pointDamage;
     int groupDamage;