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Chess engine: Seer 2.2.0

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Seer - UCI chess engine  Author: Connor McMonigle 
Rating JCER=3256 (35 place)

This release adds roughly 70 to 100 Elo in self play depending on the testing conditions. The majority of this increase in strength can be attributed to an improved network generated via self play training using the previous "retrograde learning" network used in versions 2.0.0 and 2.1.0 as a base. The specific self play code used can be found under the selfplay branch of the "seer-training" repository. The remaining 20 or so Elo originates from search patches.


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