Vector4 class

A vector with four components.

The Vector4 type exposes the following members:

Constructor	Description
`__init__(self, vec, w)`	Initializes a new instance of the `Vector4` struct.
`__init__(self, vec)`	Initializes a new instance of the `Vector4` struct.
`__init__(self, vec)`	Initializes a new instance of the `Vector4` struct.
`__init__(self, x, y, z)`	Initializes a new instance of the `Vector4` struct.
`__init__(self, x, y, z, w)`	Initializes a new instance of the `Vector4` struct.
`__init__(self)`	Constructs a new instance of Vector4

Method	Description
`set(self, new_x, new_y, new_z)`	Sets vector’s xyz components at a time, w will be set to 1
`set(self, new_x, new_y, new_z, new_w)`	Sets vector’s all components at a time
`compare_to(self, other)`	Compare current vector to another instance.