v0.7.1

With this release, Ruckig allows using a variable control rate!

⚡ Features

• Makes delta_time non-constant.
• Allows to reset Ruckig and therefore force a new trajectory computation (#132).

🐛 Fixes

• Improves the stability of the velocity control as well as the discrete duration mode (e.g. #116).
• Fixes independent_min_duration in case of a brake trajectory (#128).
• Fixes a rare issue where the first update does not calculate a trajectory (#115).
• Fixes warnings for MSVC (e.g. #127, #133).