public long getFieldLocation(long fieldOffset) {
		return structureStart + fieldOffset;
	}
Returns the stream location of an offset from the start of this structure instance.

@param fieldOffset number of bytes from the beginning of this structure where a field (or
other location of interest) starts
@return absolute offset / position in the program / BinaryReader stream
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/golang/structmapping/StructureContext.java