An edit to Thieves Cant

[Witty Username]

I'm not sure the addition to Thieves Cant is appropriate for 1st level and really ties the Rogue into the stereotype of always having Stealth proficiency.

Eh, between sneak attack and cunning action, stealth is a pretty significant expectation of the rogue kit already. The 1st level concern is definitely in the brain though, but I figured this made sense as communication effect so Thieves Cant made sense, and want to make sure the effect is early enough to be useful, 3rd-5th would be inline with other classes getting similar so that is probably a good point to have it.

Other skills do have an easier time of it, since the help action is just a thing. Hiding made some sense as a feature since that is harder to justify the general rules applying.