Keycloak SAML

At https://github.com/ONLYOFFICE/ControlPanel/issues/6 I showed my findings in how to use KeyCloak as a provider. If somebody else could also test it, then maybe this can be prepared to be used in the documentation. I can provide screenshots and everything, but best not to base it on one experience.

And please no vague scripts and info on installing Keycloak, as was done with Shibboleth. The current docs on SAML were actually counter-productive.

Hello @vincx

Thank you very much for the information, we will surely take a look at.
Unfortunately, we are not planning on adding an integration with Keycloak at this moment. We will certainly consider this information in future.