MTU의 사이즈 교환과 BLE 처리량
1. Support mtu exchange
2. support loopback, ack and no responese test mode for Android 5.x to 6.0
3. Added BLE device interval time change
4. UUID list:
UUID_SERVICE_BLE_DEVICE_INTERVAL = UUID.fromString("0000e050-0000-1000-8000-00805f9b34fb");
UUID_CHAR_BLE_DEVICE_INTERVAL = UUID.fromString("0000f050-0000-1000-8000-00805f9b34fb");
UUID_SERVICE_BLE_THRUPUT_TEST = UUID.fromString("8832ab08-ba2d-0184-004c-68c08e2190bf");
UUID_CHAR_BLE_THRUPUT_TEST_WRITE = UUID.fromString("361e118a-5524-29b6-0345-b15e12e25b34");
UUID_CHAR_BLE_THRUPUT_TEST_LB = UUID.fromString("361e118a-5524-29b6-0345-b15e12e25b34");
CLIENT_CHARACTERISTIC_CONFIG = "00002902-0000-1000-8000-00805f9b34fb";