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Chess engine for Android: Alexandria 3.5.0

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Chess engine: Alexandria 
Author: PGG106  Rating CEDR=2604

v.3.5.0:
What's Changed
Lazy SMP by @PGG106 in #86
Improve and modernize uci support by @PGG106 in #91
Reduce checks for time running out to once every 1024 nodes by @PGG106 in #92
Improve memory usage, add some comments, fix movetime uci command by @PGG106 in #93
Move most of the allocations on the heap by @PGG106 in #95
Rework search stack by @PGG106 in #96
Rework history heuristic by @PGG106 in #97
change nmp to fail soft by @PGG106 in #98
Final tweak to search output pretty_print by @PGG106 in #102
avoid perft crashing when called with a depth of 1 by @PGG106 in #105
Rewrite LMR with a more conventional approach by @PGG106 in #109
Make nmp more aggressive by @PGG106 in #110
Introduce continuation history by @PGG106 in #111
Store static eval in the TT by @PGG106 in #114
Simplify TT exact flag in Qsearch by @PGG106 in #115
Avoid LMR dropping into Qsearch or extending by @PGG106 in #117
Full multi-threaded datagen implementation by @PGG106 in #119
fix movepicker by @PGG106 in #127


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