many usage improvements & cross platform compatibility

• added workaround for amount in cat
• added AssetIDCache as utility class in chia_client_api.Helpers_NS useful if you need to look up asset ids often
• added information to offer summary if the offer will generate a separate fee transaction for the person accepting the offer
• added information to TradeRecord if this offer generates a separate fee transaction for you
• traderecord status is now the apropriate enum TradeStatus
• added implicit conversion from TransactionDict to WalletID_RPC
• added functionality to check if the file exists on disk due to extension
• added efficient hash comparing function to CHIA_RPC.HelperFunctions_NS.HashCompare
• added utility comparing operations to coin. ==, != and .Equals()
• GetCoinID() is now deprecated. Please use the property CoinName
• added comparison function for two coin arrays
• added transaction comparison
• added implicit conversion from ulong to fingerprint_rpc
• added implicit operator for WalletID_RPC (ulong)
• added implicit operator for GetTransactions_RPC (walletID_RPC & ulong)
• improved client endpoints error handling. They will no longer return a null value. Please check if bool success and string error
• Fixed Paths for Cross Plattform compatibility