[Feature] Add support for plantUML mindmap, wbs, gantt

[MSSandroid]

Description

I have added supprt for mindmap, wbs and gantt charts in plantuml. I just copied the part for the part for Ditaa chart and change the @ indicators and switched to svg output.
I havent added any tests, since I am not shure how. Test and lint have same output as current master

Issue fixed

Type of changes

• ⚪ Bug fix (Change that fixed an issue)
• ⚪ Breaking change (Change that can cause existing functionality to change)
• ⚪ Improvement (Change that improves the code. Maybe performance or development improvement)
• ✅ Feature (Change that adds new functionality)
• ⚪ Documentation change (Change that modifies documentation. Maybe typo fixes)

Checklist:

• ✅ My code follows the project code style
• ⚪ I have written test for my code and it has been tested
• ✅ All existing tests have been passed
• ✅ I have attached a screenshot/video to visualize my change if possible

[Komalis]

What is taking so much time to review?

[ZeroX-DG]

Hi, sorry for the late review. @MSSandroid Can you add a simple snapshot test? Just add the test to this file and delete the snap file in the same directory and run yarn test to test it. Apart from that everything works fine.
https://github.com/BoostIO/Boostnote/blob/master/tests/lib/snapshots/markdown-test.js.md

[MSSandroid]

I have now added separate tests for the different diagram types. Sorry for the delay.

[ZeroX-DG]

@MSSandroid Can you fix the conflict before I approve your code?

[MSSandroid]

I falsely deleted the branch in my fork.... Reopened a copy in pull request # 3249