Add another provider

[josejuanmontiel]

Hi!

In my previous job, i was using this plugin ... now i'm working in another project where the use Agiltiy (another tool for planing) and consider to add ... but ... searching another plugins i found this and think that will be more easy add another provider.

I was playing with the API of the Agility (they have a sample instance, where i create a normal user and get a token)

The case.. i was playing to add in my fork and before playing a few ours last night (and this morning :) i think it's possible use in my new job. I you consider useful... when i finish the code... i can open a PR to merge... i'm not sure if i implement correct the new provider.

[ilaif]

Hi @josejuanmontiel! Sorry for the late reply. For sure! Please open a PR and we'll get this merged!

[josejuanmontiel]

Hi! I started in draft... to start a conversation.

#23

Take a look and i'll complete the explanation this week.

[josejuanmontiel]

Ready to review :)