Add support for min/max exclusive bounds

[ctrueden]

It would be great if modules supported exclusive bounds for min and/or max. In terms of the ModuleItem API, we can add isMinExclusive() and isMaxExclusive() flags, which default to false. For @Parameter annotations, this could be done without modifying the type by supporting syntax like ">2" for min and "<3.5" for max. That is: look for >or< symbol leading the string, strip it out, and set the exclusivity flag to true. Then parse the rest as usual.

Thanks to Adrian Daerr for the suggestion.

[adaerr]

Happy to see my original suggestion has become much more elegant once reformulated and generalized by Curtis. :-)