public DBHandle getScratchPad() throws IOException {
		if (scratchPad == null) {
			scratchPad = new DBHandle();
			scratchPad.startTransaction();
		}
		return scratchPad;
	}
Returns a shared temporary database handle.
This temporary handle will remain open unitl either this 
handle is closed or closeScratchPad is invoked.
@return shared temporary database handle.
@throws IOException if IO error occurs
Ghidra/Framework/DB/src/main/java/db/DBHandle.java