Add a more natural way to access microgrid metadata

[llucax]

What's needed?

Now to access microgrid metadata we need to do: microgrid.connection_manager.get().microgrid_id and microgrid.connection_manager.get().location. We need a more natural way to access microgrid metadata.

Proposed solution

Add a shortcut via: microgrid.microgrid_id() and microgrid.location().

Use cases

No response

Alternatives and workarounds

No response

Additional context

Original discussion:

• Prepare release notes for the v1.0.0-rc3 release #775 (comment)