Fixed some issues with light theme support:
1) Icons in content tree nodes (Folder icons) now use the foreground color. I did not find a case where the content tree is used for other icons.
2) The asset picker now uses the Background Normal color (instead of a very transparent dark gray) for the background, and Orange for the text. Did not seem like it warranted adding a new color, and Orange works in both dark and light styles.
3) The platform selector icons are now hard-coded instead of based on the style. This may sound odd, but the icons are colored, so they should always use White as the fully active color. Previously they worked with a dark theme because the Foreground was set to white.
4) Fixed the CollectionBackgroundColor in the light theme being dark gray instead of light gray like it should be. This fixes certain lists of things having a dark background in the light theme.
1) Added ForegroundViewport as a new color. It is used in the main game viewport (ViewportWidgetButton), and the viewport for rendering of particles and materials. It is needed because the default foreground in a Light theme is black, but black does not work well in a viewport. A new color seemed appropriate.
2) Fixed the profiler window to use the Foreground color in multiple text elements, instead of Color.White (or no default TitleColor). This includes the Row class, Asset class, SingleChart class, Timeline Class, and more.
3) Added a second theme/Style (DefaultLight) to include with the engine. It uses RGB float values because those were easier to transfer from the saved values that I had created (and they're easier for me to edit if necessary). I tried to emulate how the Default theme is created/loaded/etc as closely as possible.
* Fixing issues where when the editor would try and launch rider on an M1/2 machine it would not properly open because it was the wrong architecture which is now resolved because open will do the right thing
* Making the ParseArgs function a little more resilient against escaped arguments
* Adding macOS FileSystemWatcher, this should allow files to be monitored and update like the other OSs
* Reworked how macOS launches processes to use NSTask which just deals with escaped and unescaped paths better
* Made a change to the ScriptsBuilder::RunBuildTool, this was adding the escaped values to the path, in reality it should be up to the underlying OS to make sure things are properly escaped, so removed those as they just end up causing issues. Also instead of appending the args to the fileName we just properly use the Arguments variable on the CreateProcessSettings
* No longer use open in order to show files in the finder, we use the proper method selectFile
* made a slight cleanup change to the MacPlatform Tick function
* Added ToNSString functions just to make that easier
* Added a ParseArguments function that will take a string and turn it into an array for NSTask
* Adding in code to properly look for rider on macOS
* Also fixing an issue in the macOS CreateProcess where spaces where not properly escaped for popen(which one should likely use NSTask long term)