Add a combat_precomputed_x property for all of the powers, Accuracy, and Defense that lets you set them to a fixed value

This is mostly to make it easy for pets to inherit a snapshot of their summoner's stats at cast without fancy function capture and such.

Ideally we would just add the summoner's raw power to the summon, but at present there is no way to calculate raw power without information loss.

Update living weapons and sleeping dragons vaults

Starsapphire messaged me with some updates for them and I added some improvements myself.  
For living weapons: added new "moving" enemy weapon weaker than the animated and poltergeist ones, added support for orcs weapon types, and improved the way the ASCII map generation is handled.  
For sleeping dragons: replaces the sleep effect with a proper dozing effect to prevent use of instant use skills while asleep, bumped up chances of aggroing when picking up loot, added as a possible vault to spawn in Eruan, and bumped classes of the dragons from just wyrmic to wyrmic plus 1 random one for drakes and plus 2 random ones for the wyrm (they're supposed to be deadly even by vault standards after all!)  

See merge request !608

Living weapons vault fix

Fix for living weapons vault breaking generation if it tried to generate a whip. Also added a failsafe to prevent future broken generation

See merge request !607

Dynamic zones can now be set to reload lists instead of saving them, using zone.embed_lists
In developer mode all generated maps' entities are now checked for upvalues. Beware evil code! Beware!

Simplified main menu's new game option, with dev mode on it always shows a list of modules, without it only shows if more than one is installed

added proc power reduction function to archery



See merge request !605

Misc 1.6.6

Most significant changes:  
- Fix some of Shibari's naughtiness not adding sfx or particles to talents  
- Improve drops from pride uniques: these are harder than vaults ever were, so it felt unsatisfying for them to give no drops of value; they now have a 65% chance to drop a fixedart or 35% for a randart. Adding a decent amount of potential high quality loot drops is fine because hidden vaults give worse loot than non-hidden vaults (there are more possible vaults for hidden vaults to choose from than non-hidden ones, and most of these additional ones drop very little loot) so this compensates for that while shifting the loot to a more satisfying source.  
- Buff summoner's Pheromones to increase damage received from their summons  

See merge request !603

Mindstars now randomly roll either as nature or mind damage (except for fixed artifacts) and give an Attune Mindstar talent to swap them to the other damage type

Non-default power caused slightly problematic values at enemy TL

This reverts commit fccc0235.