int depthZeroHash(int flavor) {
		int encoding = 1;									// Initialize
		encoding = Pinning.hashTwo(encoding, block.getInSize());
		encoding = Pinning.hashTwo(encoding, block.getOutSize());
		encoding = Pinning.hashTwo(encoding, flavor);
		return encoding;
	}
Compute a hash of the meta-data associated with the node, not including edges.
This is effectively a 0-gram of the node.  It hashes info about the number of in
and out edges to this node, but nothing else specific about neighbors.
@param flavor is an extra context specific value to be included in the hash
@return the hash
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/graphanalysis/CtrlVertex.java