[FEATURE] Implement HTML-Like labels for Graphviz DOT generation

[ExusAltimus]

Quick and useful feature request
https://www.graphviz.org/doc/info/shapes.html#html
https://www.graphviz.org/pdf/dotguide.pdf

Graphviz supports HTML in labels, but needs to be escaped with < and > instead of quotes.
I suggest extending the DotEscapers helper class in order to support html like labels and adding a property to the GraphvizVertex class named something like "IsHtmlLabel" to enable the feature

[KeRNeLith]

Hello @ExusAltimus!
This seems to indeed be a nice improvement. Do you have any start of work on the subject?
I can try to have a look otherwise.

[KeRNeLith]

@ExusAltimus I prepared a branch for the feature. You can have a look at the html_label_graphviz branch, and feel free to give me feedback.
Then I will plan to merge it to the master branch.

EDIT: Here is a temporary package to test the feature.

[fireflycons]

UpVote UpVote
Would love to see this released soon.

Thanks.

[KeRNeLith]

Feature implemented in 49cc703 and is available on releases >= 2.3.1.