added degToRad and radToDeg

src/mol-math/misc.ts

@@ -0,0 +1,13 @@
+/**
+ * Copyright (c) 2018 mol* contributors, licensed under MIT, See LICENSE file for more info.
+ *
+ * @author Alexander Rose <alexander.rose@weirdbyte.de>
+ */
+
+export function degToRad (deg: number) {
+    return deg * 0.01745  // deg * Math.PI / 180
+}
+
+export function radToDeg (rad: number) {
+    return rad * 57.29578  // rad * 180 / Math.PI
+}