my new unit_attributes_generic

[XNTEABDSC]

a unit_attributes_generic system which is more flexible and more readable.

It split attribute handling into files at LuaRules/Configs/UnitAttributeHandlers

also separate unit death explosion and unit reload pause into 2 gadgets.

Added ability to handle
burst(mult),
burstRate(mult),
sprayAngle(add),

Tested behaviors:
Techk level up health, projectileMult, rangeMult, minSpray, death explosion, econ
Jump,

[GoogleFrog]

GG would be better.

[GoogleFrog]

This looks pretty good and seems like a decent next step in the genericising of attributes.Some comments.

• I recall GG access being a lot faster than GetUnitRulesParams, so gadgets should use GG for internal communication.
• Does this spam tables, and generally how is performance? The fairly silly structure of the original attributes came from trying to create only a few tables, each of which can contain a lot of unitIDs. This has been lost with the current stable attributes though.
• I am concerned that the death explosion and reload pausing gadgets look like standalone gadgets. They each expose GGs that I don't think we can stop modders trying to use. I think I'd prefer it if the attributes gadget had a GameFrame and UnitDestroyed that it could send to the attribute types that use them.
• Indent with tabs rather than spaces.

[sprunk]

Scary amount of changes for so few commits. Would be nice if this was cut into minimal commits