Advanced "teach" functionality (jogging the robot) - Cartesian movements

[NathanaelGandhi]

• [ ] #39
  • [x] Add second panel
• [x] change panel colours
• [x] change panel titles
• [x] add slider labels
• [x] fix panel2 resize - not locking before resize
• [x] Fix axis resize - not respecting allocation on resize
• [x] add sliders panel 2
• [x] add slide value text box
• [x] Add sliders panel 3
• [x] add labels panel 3
• [x] add slide value textbox panel 3
• [x] limit panel2&3 sliders to sensible Cartesian limits
• [ ] update actions on panel2 update callback
• [ ] update actions on panel3 update callback

[NathanaelGandhi]

im stuck on this approach, I'm going to leave this branch hanging and start again

[NathanaelGandhi]

Attempt 2 working. #56 Closing