External communication and bidirectional LoRaWAN communication

Currently, the solenoid controller depends on the ESP32's wifi for its sole communication method, and requires that the user be within the same network to configure the solenoid controller's settings.

In addition to allowing LoRaWAN as a downstream communication method (in addition to the existing wifi method), both methods should be accessible from an external network (i.e. not on the same wifi network). This part may require configuring the LoRaWAN gateway for external access.

This will be done primarily in the ENTS firmware, but will be related to the NodeFlow web-based GUI #3 (which will take user inputs from anywhere and then send them to the solenoid controller).