Replaced the types of all physical quantities related members/arguments with SI unit types as provided by the Units library.

• Underlying type of mantle_api::Vector3 needs to be a unit.
• Underlying type of mantle_api::Dimension3 is SI base unit [m].
• Underlying type of mantle_api::Orientation3 is limited to SI units [rad], [rad/s], [rad/s^2].
• Underlying type of mantle_api::SimulationTime is SI base unit [s].
• Units used in project Open Simulation Interface (OSI) were considered accordingly.

The program was tested solely for our own use cases, which might differ from yours.

Jupp Tscheak jupp.tscheak@daimler.com, Mercedes-Benz AG on behalf of Daimler TSS GmbH

https://github.com/Daimler/daimler-foss/blob/master/PROVIDER_INFORMATION.md