private DataType getBuiltInDataType() {
			DataTypeManager dtMgr = getBuiltInDataTypesManager();
			Category category = dtMgr.getCategory(path);
			if (category != null) {
				DataType dt = category.getDataType(dataTypeName);
				if (dt != null) {
					return dt;
				}
			}
			return null;
		}
Determine if we can remember the specified project archive using a simple project path
(e.g., we can't remember specific versions).
@param pa project archive
@param activeProjectOnly if true pa must be contained within the
active project to be remembered.
@return return project path which can be remembered or null
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/DataTypeManagerHandler.java