[Rust] custom from_slice constructor of Vector class.

// Constructor
impl<T> Vector<T> where T: Copy + fmt::Display + num::Num {
    pub fn from_slice(v: &[T]) -> Vector<T> {
        let mut vec: Vec<T> = Vec::new();

        for i in 0..(v.len()) {
             vec.push(v[i])
        }

        Vector::<T>{ vec: vec }
    }
}