-Implemented shared function for focusing FileSystem tab and highlighting the node path.
-Created right-click option that shows up in the Scene-Hierarchy on Nodes that have a file-system source path.
-Created custom icon for this right-click option
-Implemented the shared function and icon for other places that already had this features (Open Node tab, Inspector Resource)
Co-authored-by: MewPurPur <mew.pur.pur@gmail.com>
