public void saveXml(Writer fwrite) throws IOException {
		fwrite.append("<atom");
		type.saveXml(fwrite);
		fwrite.append('>');
		SpecXmlUtils.xmlEscapeWriter(fwrite, value);
		fwrite.append("</atom>\n");
	}
A single element for filtering on specific properties of ExecutableRecords or FunctionDescriptions
Each FilterAtom consists of a FilterTemplate describing the property to filter on, and how the filter should apply,
and a String -value- that the property should match (or not)
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/protocol/FilterAtom.java