Now uses new JSON member lookup utilities implemented in commit f6e93ee457876ce869ce04067fe9344ff81083ca. All lookups (typically 3 per member) have been reduced to 1 by caching and reusing all value pointers or iterators. Also added error strings for 2 missing error cases in CPylon::GetEULA(), previously it would only set the error string during fetch error, but not when the data is missing or the schema is incorrect.
This will be used to improve performance on the current RapidJSON implementation in the SDK by cutting out a lot of common operations (such as checking if a var exists and then getting it by name, automatically creating 2 expensive lookups).
RCON lacked encryption, added AES-CTR encryption on RCON frames. Slightly adjusted protocol to take this into account (sending nonces, encrypted data itself, etc).
This code was actually part of the LiveAPI system, but there were many opportunities to make this particular code modular, so it has been decoupled and moved to Tier2. The LiveAPI system will soon use this class instead. The implementation has also been improved by adding dedicated routines for updating socket parameters, disconnecting/reconnecting and destroying sockets.
This commit also removes legacy workaround code in UtlVector which was used for before we had early enough access to the game's memalloc singleton. This code was no longer used.
This commit also implements the CUtlStringList class, which is now used for the new websocket class to split each socket connection up by a comma delimiter.
