HermeneutiX: provide more modular SVG export options

[CarstenWickner]

As a HermeneutiX user I want to be able to determine which parts of the analysis should be included in an exported SVG file in order to have the same flexibility as in the application.

WIth the single analysis view and individual view toggles (#20) introduced in version 2.2.0, the strict separation of syntactical and semantical analysis has become obsolete.
The SVG export should offer the user the selection of the same toggles as in the normal analysis view.

The "All Details", "Syntactical Analysis", and "Semantical Analysis" presets should also be offered here, to allow for a quick selection of the desired result. Ideally, the offered dialog should be prefilled according to the currently active view toggles in the analysis view when being opened.
The option to include/exclude comment references should be preserved as well.

[CarstenWickner]

When re-doing the SVG export here anyway, #12 (export including project title) and #13 (export with defined background color) should also be considered.