Parse basic identifiers

Created by: ecoulson

Summary

Parses some of the basic identifiers of the form

{name} ::= identifier

Closes #20 (closed) #22 (closed) #23 (closed) #24 (closed) #25 (closed) #26 (closed) #27 (closed) #28 (closed) #29 (closed) #30 (closed) #31 (closed) #32 (closed) #33 (closed) #34 (closed) #35 (closed) #36 (closed) #37 (closed) #38 (closed) #39 (closed) #40 (closed)