public void markAlign(int alignMarkerIn) {
		this.alignMarker = alignMarkerIn;
	}
Stores the current index value as a marker for performing alignment.  The {@link #align4()}
method calculates alignment based on this marker.
@param alignMarkerIn Offset to begin alignment calculations.
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/PdbByteReader.java