Use defmacro/2 to define a guard

[vlemann]

The solution that seems to fix the exceeded guard stack is to use plain old good defmacro/2 instead of defguard/2. This should hopefully fix #7

This PR obsoletes #8

[kipcole9]

Truly appreciated, thank you very much. Will publish a new hex version in the next hour or so.

🥳🥳🥳🥳🥳

[kipcole9]

I've published ex_uncode_guards version 1.0.1 with the following changelog entry:

Bug Fixes

• Use defmacro instead of defguard for some guards to avoid implementation limits on OTP 27. Issue to be explored further upstream with Elixir and OTP. THanks to @vlemann for the PR, greatly appreciated. Closes Use defmacro/2 to define a guard #9.

Thanks very much again for the PR.