Closes#2167
Based off sub_71001D16A0 with shortcut modifications:
* code marks new entries for evolution processing later using the low
bit (hence the << 1); in save files I can't see any bits set, but I
can't see anywhere in the code that DOESNT set this bit. Thus the
assumption of post-processing.
As noted in gameplay, a new capture doesn't set Min and Max; it only
sets it if it is above the usual sizing values.
Megas apparently don't set until seen in battle, so don't worry about
setting the other forme based indexes.
reduce nesting (evo.RequiresLevelUp is checked twice, only check once
and handle path)
compact some methods
seal some classes
add a little xmldoc to exposed members
fix b2w2 egg base levelup reference (not bw, b2w2!), doesn't really
matter much except for better indication (possibly?)
remove some unnecessary linq ToArray() calls
continue relocating code out of Core
Too many classes in the same file, break up.
simplify things a little in EncounterArea (remove passing thru nulls,
should throw excpetion immediately if misconfigured).
* Fix minlevel of Pangoro/Tyrantrum/Aurorus in gen6
30: level + dark type in the party
32: level + day
33: level + night
34: level + female
Note Meowstic isn't affected due to another entry of level + male (23)
* Minor text usage fix
* Fix xorPID flipping in TransferEC check