[nad-viewer] Add SVG width and height in NAD creation from metadata

[massimo-ferraro]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• A PR or issue has been opened in all impacted repositories (if any)

Does this PR already have an issue describing the problem?
no

What kind of change does this PR introduce?
feature

What is the current behavior?
In the NAD viewer, the SVG writer that creates the SVG starting from diagram metadata does not add width and height to the SVG, even if the svgWidthAndHeightAdded metadata parameter is set to true

What is the new behavior (if this is a feature change)?
In the NAD viewer, the SVG writer that creates the SVG starting from diagram metadata, if the svgWidthAndHeightAdded metadata parameter is set to true, adds width and height to the SVG

Does this PR introduce a breaking change or deprecate an API?

• Yes
• No

The PR renamed the metadata utils getViewBox function to getViewBoxAndDimensions, changing the result type from ViewBox to Dimensions, i.e. including in the results also the size of the SVG, not only the viewbox. You can see the changes in the function test

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
72.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud