App testing

To test app without usb device, accessory app can be used to simulate usb device responses - https://github.com/agamula90/UsbAccessory

Usb device specifics

• Raw bytes = bytes of size 7 + first 2 bytes are (0xFE,0x44)
• When bytes from app don't contain (), then redundant \r byte should be send at end
• When bytes from device are not raw bytes, then command will contain redundant space at end

TODO's:

• refactor "app" library to provide better sdk
• refactor "androidLib" library to provide better sdk