feat: template<class T> Motor : std::array<Quaternion<T>,2> type for orientation

### Problem statement

Add Motor type with operations for orientations.

### Proposed solution

```cpp
template<class T> struct Motor : std::array<Quaternion<T>,2>
{
        using Base = std::array<Quaternion<T>,2>;
        using Rotor = Quaternion<T>;
        using Screw = Quaternion<T>;
};
```

### Alternatives considered

_No response_

### Impact and compatibility

_No response_