Illuminate matrix to indicate whats going on in the code

[DomGarguilo]

The only way to tell whats going on in the code is to have the serial monitor up. It would be nice to have a way to tell what part of the script is running without that.

One idea is to have the matrix light up different colors depending on whats going on. For example, blue when connecting to wifi, red when wifi fails, orange when setting up SPIFFS, etc.

[DomGarguilo]

List of different states to add unique animations for:

• connecting to wifi
• offline
• animation queue is empty
• error talking to server
• fetching new data
• firmware update (4f60a2a)

[DomGarguilo]

all done after #31