Features/integrate cookie branch

[weh]

I needed the ability to send JWT using a Cookie. So i tried to integrate the already present branch from ghetolay. Credit for the Implementation belongs to @ghetolay. I don't know the exact status of his branch. So i tried to merge and use it in its current state.

This is what i did:

• Changed the default behaviour to be "Authorization header" only (https://github.com/AnthonyDeroche/mod_authnz_jwt/commit/6e1ff0aa8baed7bf3678fbd080987a4464f4b95a)
• Chaged the Code to initialize a variable (guess that was a bug) (https://github.com/AnthonyDeroche/mod_authnz_jwt/commit/6643a2017d945064df83afe81c9f721579dbb050)
• Added some documentation
• Cleaned up the tabs/spaces mix. (I don't care which one to use, as long as it is consistent in the file)

Disclaimer: I am not a C programmer, so i would be happy if someone with C knowledge could review this changes. This would close #28

[tha80]

I also need the possibility to have the JWT token in a cookie. I have tested the code from this PR and it works very well for me. But to be honest, I also made no real code review. Nevertheless I would be very happy if this PR could be merged into master in near future. I think a lot of people would benefit from it.

[ghetolay]

Hi, I need to find some time to finish this indeed. I got it working on a POC and got no problem so far but usage is very simple and limited. If I remember correctly what's left to do are mostly tests and user configuration.

[AnthonyDeroche]

Hi, could you rebase your branch on master when you are done with this work so I can review and merge ? Thanks for the contribution.

[weh]

@AnthonyDeroche Rebase is done, i think it is ready to review.

[harrylepotter]

@weh @ghetolay this is an amazing patch.

[Voldemar123]

Hello all! lets merge and release new module version ? I am waiting for this feature

[AnthonyDeroche]

I need to review & test before merging. I was in holidays, I should be doing this in the next few days.