Rearrange configuration, motor and servo tab

[haslinghuis]

Feature Request: as suggested by @McGiverGim:

• Move Mixer, ESC/Motor and 3Dfeatures to Motors TAB.
• Move Servo test bars to Servos TAB.

Follow-up reminder:

• Fix Rework 'Receiver' tab #81 (already done, only need cleanup after this PR is done)
• Validate outputs with motor data after reboot and give a notice when there are to many outputs configured.
• Dynamic display of motor test bars depending on available resources.
• Redesign slider as suggested in this issue
• Design a Parameter Group based loading/saving/polling mechanism for MSP.

[haslinghuis]

Screenshots:

Configuration:

Servos:

Motors:

[haslinghuis]

There seems to be a bug I didn't notice before (also in 10.7 release):

[limonspb]

What's wrong here?

[haslinghuis]

[McGiverGim]

Great work here! Is taking some time but the result is very good!

[mikeller]

I am still not convinced that the square 'bars' and the tiny sliders are good UX.
I think if we arranged them side by side we'd actually make the slicers usable instead of 'pro forma' only.
Alternatively, if we don't think that users will want to use the sliders, we should remove them and replace them with numerical input fields, and use the space we gain to change the 'bars' to actually be bars and not squares.

[haslinghuis]

@mikeller: The minimum size would only take about 30% width at full HD. So we could save a lot of space.

If we also move the notice below the test we now have a column on the right for the configuration section.

[mikeller]

I prefer something along the lines of this - having both the sliders and the bars side-by-side seems to be much more conducive to represent them in the optimal form of being tall and narrow:

[haslinghuis]

Wow @asizon , this idea came from @limonspb any ideas?