1-9-22 PR - Merge Global Preferences GUI back into main

[taburineagle]

Adding the global preferences tab, along with options to set:

• Whether NeewerLite-Python checks for new lights on launch
• Whether new detected lights automatically try to link
• Whether to print debug messages to the console or not (useful to do so, but you can turn it off...)
• Whether or not to remember the last used parameters for each light (mode, hue, brightness, etc.)
• Number of retries before the program throws an error
• Allowable IPs to use with the HTTP server daemon
• Custom keyboard shortcuts for every button and slider in the main program

Preferences are saved to a file called NeewerLite-Python.prefs in the main directory