cairo/matrix.go
func (m *Matrix) Translate(tx, ty float64) {
	C.cairo_matrix_translate(m.native(), C.double(tx), C.double(ty))
}
func (m *Matrix) Translate(tx, ty float64) {
	C.cairo_matrix_translate(m.native(), C.double(tx), C.double(ty))
}
// Translate translates a matrix by the given amount