Expose rendering options to CLI and sbt plugin

[steinybot]

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Description

Currently there is a distinction between the options used to analyse the SemanticDB and create the initial ClassDiagramElements and the options that then take those ClassDiagramElements and render them. None of these render options are being exposed via the CLI or sbt plugin.

This would allow more control of the generated diagram via the CLI and sbt plugin.

Potential Solution

Additional Information

While we are at it we should decide whether the hide render option is still required. It is better (and often required) to filter these out during the processing step. This is currently done by the ignore parameter on the SymbolIndex (for better or worse).