sweetening tk

after discovering how to sweeten moose with moosex::has::sugar, i thought the concept could be extended for other modules.

as a tk enthusiast, this was a logical target. especially since i was already kind of doing this with some internal modules exporting variables. so i decided to just extract this piece of code, update it and wrap it in a new module, tk::sugar.

so, where previously you were doing:
you can now write:

which is way better imo.

of course, the module supports lots of other often-used helper subs - check the doc for more information. and if you need some more, either request them or clone the repository and send pull requests! in the meantime, enjoy it...