Merging Loredans additions

[pyr0ball]

Many new features and changes:

• Enabled EEPROM for storing settings in nonvolatile memory, so configurations will stay after power loss
• Serial input has been simplified to need only the parameter and value
• Added ability to update the internal vRef constant if default isn't precise
• Synced all voltage follower parameters' names to avoid confusion
• Changed filestructure to be compatible with VSCode/PlatformIO