4.0.0 Beta 10

Changes since 4.0.0 Beta 9

• Moved OpenUrlInBrowser method from ProcessRunner to a new class UrlRunner
• Renamed OpenUrlInBrowser method to OpenUrlInDefaultBrowser
• Reduced potential RAM usage on certain CommandRunner methods.
• Moved TFM relatee code from the RuntimeIdentification class to TargetFrameworkIdentification class
• Started work on making TFM related detection code more maintainable - So far this means moving some detection code into several methods with the protected access modifier. These are for internal use only but help make the code easier to maintain going forward.
• Removed unnecessary instance of throwing an exception
• Switched all remaining var implicit typing to explicit typing
• Fixed a potential issue where OpenUrlInDefaultBrowser would have thrown a NotImplementedException - This doesn't affect PlatformKit 3.x