Allow setting ViewerOptions and set default zoom limits

[planger]

Sprotty introduced zoom limits, so we should allow setting them.
This change allows to optionally specify all ViewerOptions in configureDiagramOptions and sets very generous zoomLimits by default. This should also mitigate the bug when you zoom beyond Number.maxValue.

[tortmayr]

I'm not a fan of exposing partial IViewer options via the IDiagramOptions interface. With this approach
there is a potential mismatch if an adopter overrides the zoomLimit value in the viewer options. (IDIagramOptions than still holds the original value)

In my opinion the configureDiagramOptions method should take options of type IDiagramOptions & Partial<ViewerOptions>.
Alternatively we could also make the DiagramOptions interface a subinterface of ViewerOptions and rebind the ViewerOptions service identfier.

[planger]

Good comment, I agree that this approach wasn't very versatile. However combining IDiagramOptions and Partial<ViewerOptions> isn't very nice either because we'd have to explicitly pass the set ViewerOptions to avoid inadvertantly adding IDiagramOptions properties into the options.

Thus, I opted to introduce an optional second argument. WDYT?

[tortmayr]

Thanks. Looks good to me. I like the approach with a second options argument for the viewer options. 👍🏼