Update EventConsumer.py

changed array name
Added heartbeat messages to check if the server is alive
Moved to Arduino Mega
Removed silly debug print
Added camera setup
Removed SD card
Pictures are now working!

Added ACKs to event messages.
Fixed event objects going out of scope
Added better filenames for images.

The connection sometimes gets reset, so I added error printouts because of this
Added retransmit attempts
The device now uses the Arduino's EEPROM storage to let the device's state
and any enqueued events persist even after the device has been turned off.
Added sequence numbers for events
Moved the calls to readPicture to inside the send loop of the server connector. Pictures now take up far less memory.
re-commented the EEPROM resets and added a timer to the event consumer
Formatted for Arduino Uno (max of 3 sensors)