Allow to parse/load SVG file with follow poses algorithm

Depends on https://github.com/ros/rosdistro/pull/19508

To be done:

• Documentation (LibreCAD, join lines, export to SVG)
• DFX > SVG automatic conversion
• FIXME
• DonghongDing
• Contours
• Spiral
• Qt GUIs
• Update rosdep rule (-pip suffix ?)