fix how unique identifiers are displayed in lexer tab

[am-cid]

current

needs to be cwass_n, id_n

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solution: change what property gui uses to display Token

used to be self.token but i changed implementation. now the id_n and cwass_n is in self.unique_type

if self is Token, do self.token.unique_type if self is UniqueTokenType, do self.unique_type not sure what you guys are using there.

[chaaals]

I can work on this if not taken

[am-cid]

Merged #253, closing this