Add Nim v1.0

[alaviss]

• Name: Nim
• Version: 1.0.0
• Release Note/Changelog:
  • https://nim-lang.org/blog/2019/06/06/version-0200-released.html
  • https://nim-lang.org/blog/2019/07/17/version-0202-released.html
  • https://nim-lang.org/blog/2019/09/23/version-100-released.html

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:+1: reaction might help.

[kazk]

Deployed and enabled Nim 1.0 for compatible kata.

We currently have 13 incompatible ones and those are listed on https://github.com/Codewars/codewars.com/wiki/List-of-Nim-Kata-to-Update-to-1.0