Unijoysticle 2 - firmware v0.5.1

[0.5.1] - 2020-01-03

Added

• Firmware: Xbox One: rumbles when connected or swap joystick port.
• Firmware: esp-idf v3.3.1
• Firmware: SDP queries timeout after 3 seconds, enabling another SDP query to start.
• Firmware: improved logging