(Feature): Shortcut Tooltip

[cgvirus]

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• [X] I have read the feature request guidelines
• [X] I have followed the contributing guidelines to the best of my understanding
• [X] This feature is not on the issue tracker and is not a duplicate

Provide a description of your feature request

Some important shortcuts are missing in the GUI tooltips.

• Tracker Button shortcuts for BW and FW tracking Z X C V
• Roto tool shortcuts Select: Q, Shape: V, Point add D, Clone C, Paint brush N

Mainly Tracker buttons and roto tools should have shortcut tooltips. ALSO: What is the shortcut of roto nudge left, right, up, down? Natron is giving unicodes in the shortcut editor in Linux.

Is this a realistically implementable feature?

• [X] My feature is realistically implementable
• [ ] My feature is NOT realistically implementable

Can you contribute in creating this feature?

• [X] I am unable, or not willing to contribute to creating this feature
• [ ] I am able and willing to contribute to the creation of this feature

Additional details

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