added struct declarations for alkali and halogens, nothing implemented yet
added halogen structs in element file on accident.  Switched them to the right place
added the rest of the data associated to the structs
added createAlkali function to create the structs
added createHalogen function to create the structs
very, VERY basic algorithm to check if two elements bond.  Only checks to see if their outer electrons bond to make 8 outer.  Definitely needs reworked, but I don't have the time to research a more complicated algorithm currently