public String getProjectLocation() {
		if (projectPath == null) {
			return null;
		}
		String path = projectPath;
		int ix = path.indexOf("::");
		if (ix > 0) {
			path = path.substring(ix + 2);
		}
		ix = path.lastIndexOf('/');
		if (ix < 0) {
			return null;
		}
		return path.substring(0, ix);
	}
Return a Project location which corresponds to the projectPath 
or null if one can not be constructed.
@return project location
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/store/ItemCheckoutStatus.java