Replace ability_building with lua modifier_building

[MNoya]

Realization from #12

Make a lua modifier for it and apply it directly (changing the detection of buildings to unit:HasModifier("modifier_building"))

States

• MODIFIER_STATE_MAGIC_IMMUNE (add setting in building_settings.kv)
• MODIFIER_STATE_SPECIALLY_DENIABLE (add setting in building_settings.kv)
• MODIFIER_STATE_ROOTED
• MODIFIER_STATE_LOW_ATTACK_PRIORITY
• MODIFIER_STATE_NO_UNIT_COLLISION

Properties

• MODIFIER_PROPERTY_DISABLE_TURNING (add setting for the default, and unit KV for specific buildings)
• MODIFIER_PROPERTY_IGNORE_CAST_ANGLE (already in modifier_disable_turning.lua)
• MODIFIER_PROPERTY_MOVESPEED_ABSOLUTE (or _LIMIT 0)