public void addProduction(NT lhs, AssemblySentential<NT> rhs) {
		P prod = newProduction(lhs, rhs);
		addProduction(prod);
	}
Add a production to the grammar

@param lhs the left-hand side
@param rhs the right-hand side
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/grammars/AbstractAssemblyGrammar.java