public ProgramDB getPrivateProgram() {
		return privateProgram;
	}
Returns private Immutable program.
This represents the local program to be checked-in.
Program returned will be released by the MergeTestFacilitator 
when disposed or re-initialized.
@return the program
Ghidra/Features/Base/src/test/java/ghidra/program/database/AbstractMTFModel.java