Merge of V2.0dev to master for upcoming release v2.0

[seeul8er]

Changelog:

• ESP-NOW LR Mode support with AES256-GCM encryption for more robust & secure long-range connections (swarm support)
• ESP32 LR (long range) support using WiFi mode (swarm support)
• Support for MAVLink semi-transparent parsing to reduce packet loss
• Injection of Radio-Status messages in MAVLink mode to pass RSSI information to GCS when in LR mode (introduction of ESP32 to ESP32 telemetry)
• Support for receiving UDP Broadcast messages
• Support for manually adding UDP targets via web interface
• Support for static IP
• Improved web interface build system thanks to @mmalecki
• Boot button to reset configuration (long press & short press)
• Documentation updates
• Fixed MSP parsing bugs