Major refactors

gradientmesh/util.py

@@ -1,4 +1,6 @@
 #!/usr/bin/env ipython
+from types import FunctionType
+
 def clamp(val, low, high):
     return min(high, max(low, val))
 
@@ -10,3 +12,14 @@ def rgb2hex(r, g, b, a=None):
         int(b * 255)
     )
     return hex_value
+
+
+def any_map(f: FunctionType, lst: list):
+    result = []
+    for itm in lst:
+        if isinstance(itm, list):
+            result.append(any_map(f, itm))
+        else:
+            result.append(f(itm))
+
+    return result