Clears all items from the list of directories that is searched by Shogun Post to generate the internal list of scripts and pipelines.
This list can also be viewed at the top of the Directories tab in the Preferences dialog.
Removing the default paths may cause some UI buttons to fail if the internal list of scripts and pipelines is rebuilt by reparsing the script directories.
// Clear existing script directories and replace with a new script
// directory and re-load scripts and pipelines
addScriptPath "C:/My Documents/Shogun/MyScripts/" -reparse;