Add wildcard notation that excludes cross-listings

[bnehoran]

Add a notation to wildcards in course lists to signify that only courses taught by that department will count (as in, excluding cross-listed courses).

For example, in addition to the usual
AAA 3*
which indicates a 300 course in AAA that's may be directly in the AAA department or cross-listed with it (that is, a course like BBB 345/AAA343), we could have
AAA 3! or AAA 3^ or AAA 3--
or some other symbol (not sure which symbol is best) to indicate that it must be a course that's listed as AAA first, like AAA 372/CCC 372.