Started #257

[Kittyfisto]

Fixes #257

Changes proposed in this pull request:

• [x] Added a new panel to display help related topics and/or actions
• [ ] Beautified the new panel (it's ugly af)
• [ ] Explored the possibility of adding multiple issue templates (e.g. asking question vs reporting defect vs requesting feature)
• [x] Added action to display local documentation
• [ ] Written documentation
• [ ] Deployed documentation with installer

Any expected problems concerning backwards compatibility of existing plugins?
No

Any expected problems concerning backwards compatibility of existing user settings?
No

Does this break existing user workflows?
No