Management Console: Add support for OIDC authentication and multiple Processes runtimes

[thiagoelg]

The Management Console is a web application designed to manage Processes and User Tasks from a configured Process Runtime instance. It can create, update, and list processes and submit or re-assign user tasks.
 
The relation between a Process Runtime instance and the Management Console is 1-N, meaning that a runtime can be assigned to many consoles, but a console can only be assigned to a single runtime. This is done by setting an environment variable when deploying/starting the Management Console with the Process Runtime URL.

This issue aims to change this relation, making it possible for a console to connect to multiple Process Runtime instances while also adding the ability to manage secured runtimes through an Identity Provider.