v0.9.70 Pre-Release WiFi and LoRa Counters

V 0.9.70 Pre-Release of parkData system.

• Support for changing eInk display at runtime
• Support for new 2.13" display
• Turn off WiFi to save power after a period of inactivity
• Maintain WiFi in AP mode or when Web Page is open
• Fixed JSON Format in messages from LoRa base station