Method vector3

tests/run_time/source/usertypes.constructors.cpp:106–107

		class vector3 {
		public:
			vector3() : x(0), y(0), z(0) {
			}
			vector3(float x, float y, float z) : x(x), y(y), z(z) {
			}
			vector3(const vector2& _vector2, float z) : x(_vector2.x), y(_vector2.y), z(z) {