Creates a Matrix3 using the given parameters as columns
If you call the function with no parameters, returns the 3x3 identity matrix
overload 1:
matrices.mat3()
| Method Property | Fluent Description | Representation |
| Return Value | a Matrix3 | |
overload 2:
matrices.mat3(col1, col2, col3)
| Method Property | Fluent Description | Representation |
| col1 accepts | a Vector3 | |
| col2 accepts | a Vector3 | |
| col3 accepts | a Vector3 | |
| Return Value | a Matrix3 | |