Create ApiError_zh_CN.properties

Add Simple Chinese Support For API Error Message 
Hope it helps in understanding the API !

src/main/resources/i18n/ApiError_zh_CN.properties

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+#Generated by ResourceBundle Editor (http://essiembre.github.io/eclipse-rbe/)
+# Keys are from api.ApiError enum
+
+# "localeLang": "zh_CN",
+
+### Common ###
+JSON = failed to parse JSON message 无法解析JSON文件信息
+
+INSUFFICIENT_BALANCE = 钱包余额不足
+
+UNAUTHORIZED = API call unauthorized 未授权的API指令
+
+REPOSITORY_ISSUE = repository error 数据库错误
+
+NON_PRODUCTION = this API call is not permitted for production systems 此API指令已被节点禁止
+
+BLOCKCHAIN_NEEDS_SYNC = blockchain needs to synchronize first 请先同步区块链
+
+NO_TIME_SYNC = no clock synchronization yet 同步时间失败
+
+### Validation ###
+INVALID_SIGNATURE = invalid signature 无效的签名
+
+INVALID_ADDRESS = invalid address 无效的钱包地址
+
+INVALID_PUBLIC_KEY = invalid public key 无效的公共密钥
+
+INVALID_DATA = invalid data 无效的数据
+
+INVALID_NETWORK_ADDRESS = invalid network address 无效的网络地址
+
+ADDRESS_UNKNOWN = account address unknown 未知的钱包地址
+
+INVALID_CRITERIA = invalid search criteria 无效的搜寻关键词
+
+INVALID_REFERENCE = invalid reference 无效的参考资料
+
+TRANSFORMATION_ERROR = could not transform JSON into transaction 未能将JSON文件转换成交易
+
+INVALID_PRIVATE_KEY = invalid private key 无效的私人密钥
+
+INVALID_HEIGHT = invalid block height 无效的区块链高度
+
+CANNOT_MINT = account cannot mint 账号不能铸币
+
+### Blocks ###
+BLOCK_UNKNOWN = block unknown 未知的区块
+
+### Transactions ###
+TRANSACTION_UNKNOWN = transaction unknown 未知的交易
+
+PUBLIC_KEY_NOT_FOUND = public key not found 找不到有效的公共密钥
+
+# this one is special in that caller expected to pass two additional strings, hence the two %s
+TRANSACTION_INVALID = transaction invalid: %s (%s)  无效的交易: %s (%s)
+
+### Naming ###
+NAME_UNKNOWN = name unknown 未知的名称
+
+### Asset ###
+INVALID_ASSET_ID = invalid asset ID 无效的资产ID
+
+INVALID_ORDER_ID = invalid asset order ID 无效的资产交易ID
+
+ORDER_UNKNOWN = unknown asset order ID 未知的资产交易ID
+
+### Groups ###
+GROUP_UNKNOWN = group unknown 未知的群组
+
+### Foreign Blockchain ###
+FOREIGN_BLOCKCHAIN_NETWORK_ISSUE = foreign blockchain or ElectrumX network issue 其他区块链网络出现异常
+
+FOREIGN_BLOCKCHAIN_BALANCE_ISSUE = insufficient balance on foreign blockchain 请确保钱包余额足够(包含支付网络手续费)
+
+FOREIGN_BLOCKCHAIN_TOO_SOON = too soon to broadcast foreign blockchain transaction (LockTime/median block time) 执行动作太快了 (LockTime/median block time)
+
+### Trade Portal ###
+ORDER_SIZE_TOO_SMALL = order amount too low 交易数量太少
+
+### Data ###
+FILE_NOT_FOUND = file not found 档案不存在
+
+ORDER_SIZE_TOO_SMALL = order size too small 交易数量太少
+
+FILE_NOT_FOUND = file not found 档案不存在
+
+NO_REPLY = peer didn't reply within the allowed time 其他节点在指定时间内没有回应