Symbol Catalog

I got tired of hunting all over the place looking for the text representation of various symbols (mostly set and logic symbols), so I figured I would put them all in one easy to find place.  The Greek alphabet I got from Wikipedia, the rest I found at rapidtables.com.  I didn't bother with anything that was already on the keyboard (like < and >), and I didn't do anything that requires an image (that's what LibreOffice Math is for...)