* Split detection system out into its own class, DetectionManager
* Clean up ResourceManger's many callbacks into just two, one for detection and one general purpose
* Reorganize and clean up RGBController API functions
* Add functions to get protected RGBController member values
* Make NetworkClient, ProfileManager, and ResourceManager friend classes so they can access protected members
* Protected previously-public RGBController members
* Information strings (name, vendor, description, version, serial location)
* Device type
* Active mode
* Flags
* LEDs vector
* LED alternate names vector
* Modes vector
* Colors vector
* Zones vector
* Add CONTROLLER_FLAG_HIDDEN to allow plugins to hide controllers from control GUI
* Add update reason codes to RGBController update callback and signal updates on more RGBController events
* Add loop zone types and segmented zone type
* Add matrix map field to segments
* Rework matrix_map_type from using pointers to vector to prevent memory leaks
* Rework KeyboardLayoutManager to return new matrix_map_type
* Add access mutex to RGBController API
* Add per-zone modes ot RGBController API
* Add JSON description functions to RGBController API
* Fixed payload missing the Report ID (caused issues with Windows, issue #1069)
* Fixed an invalid usage page value for wired mode
* Fixed a potential memory leak when rescanning devices (issue #1007)
* Fixed an issue where multiple color changes were sent too fast
* Renamed "Trigger Fade" mode to the [standardized mode name](https://gitlab.com/CalcProgrammer1/OpenRGB/-/wikis/Common-Modes#common-openrgb-modes) "Reactive"
* Added proper brightness control
* Added manual saving functionality
* Cleaned up some indentations
Commit amended to undo change to device list management, still working through that merge request. Want to work this one in first. Changes by Adam Honse <calcprogrammer1@gmail.com>
