static int getMaxKeyLength(int bufferLength) {
		return ((bufferLength - BASE) / MIN_KEY_CAPACITY) - ENTRY_SIZE;
	}
Get the maximum number of bytes which may be consumed by a key.
@param bufferLength buffer length
@return maximum length of stored key (this includes the 4-byte length
prefix which is stored with variable length key fields).
Ghidra/Framework/DB/src/main/java/db/VarKeyInteriorNode.java