DataTypeManager getDataTypeManager() {
		return dataTypeManager;
	}
A class to 1) hold related data for creating a new data type and 2) to validate the given 
data when the requested info is based upon the a disallowed condition (e.g., creating a data
type in the built-in archive).
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/actions/DerivativeDataTypeInfo.java