* change code, location, position to unsigned

* change code, location, postion to unsigned

* use ReadUInt8() for 1-byte data

* Game::LocalPlayer() returns 0, 1

* wrong matching

* change card code to unsigned

MAX_STRING_ID=2047, MIN_CARD_ID=128

* DeckBuilder zero initialize

* DeckManager zero initialize

* fix warning

* add boundary check to network buffer

* update submodule