[FEATURE] Styling the textfield

[mstranne]

DESCRIPTION

What does your feature request improve on? Please describe. The possibility to use some commands (like markdown) inside the textfield for styling.

Describe the solution you'd like Best case would be to enable markdown like here in the GitHub textfield.

(Do not write below this line)

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DEVS' SECTION

ANALYSIS

As it is in fact already a Textfield class instead of a wxTextCtrl internally supporting very low-level Markdown, we can enable this feature quite simply by using the SetMarkupText() member function together with an additional style for the textfield element. It is however reasonable to support some more Markdown-Features than currently supported.

IMPLEMENTATION STEPS

(see also our Wiki for implementation guidelines)

• Implement the necessary changes in a new branch created here on GitHub
• Test your implementation

DOCUMENTATION STEPS

(see also our Wiki for further information)

• Update the changes log
• Add comments to your implementation
• Add Doxygen documentation comments
• Create or update the documentation articles (*.NHLP and *.NDB files, if needed)
• Update the language strings (*.NLNG files, if needed)

PULL REQUEST

• Create a pull request for your changes
• Fill out the template
• Assign @numere-org/maintainers as reviewers