Expose the dynamic-scheduler for usage by platform maintainers

[GitHK]

To figure out the state of the dynamic services, there is a new dashboard that exports what the dynamic-scheduler is keeping track of.

Tasks

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1. expose the service similarly to what was done for portioner and co service must be authenticated
2. add an entry to the credentials page where the service can be accessible

[mrnicegyu11]

@GitHK @YuryHrytsuk

Reopening since the tasklist isnt done, spotted this during the EventHorizon3 release preparations. please remove the tasklist and close again in case it should be so