I8kgui

* Added support for Ubuntu 23.04
* Installation script defaults to user-based install for i8kgui
* Install script adds polkit action files
* Installation process updated to use pip
* Added PyPI instructions
* Refactoring and bug fixes

* Closes 25
* Dependencies have been decoupled
* Console now provides some debug information by default
* New installation script options
* Added Manjaro Linux polkit action files
* Updated README
* Various bug fixes

* Fix monitoring when CPU Hyper Threading is enabled
* Fix icon search path
* Add additional checks for prerequisites/dependencies
* Adjusted and formatted output
* Use dell_smm_hwmon via Sysfs rather than /proc/i8k for gathering metrics
* Added CPU Turbo information

* Added CPU load percentages (including per CPU core)
* Added automated installation script
* Added BIOS fan control status feature
* Removed hard coded fan modes - now dynamically allocated
* Updated README
* Updated `undervolt` settings
* Updated copyright
* Updated Actions testing
* Preliminary support for Ubuntu 22.04

* Removed password requirement for thermal control and (SM)BIOS commands (system-wide installation required)
* Refactored and hardened
* Fixed thermal modes parsing error
* Added graceful degradation when i8kutils and/or (SM)BIOS are not available

* Added sample `i8kmon` configuration file
* Added Personal configuration to README
* Updated screenshots in README
* Added disclaimer to README