Add solution for simple fun coord helper

src/python/katas/py6kyu/simple_fun_coordinate_helper.py

@@ -0,0 +1,12 @@
+"""Kata url: https://www.codewars.com/kata/5936107d40ed69ea1e00003d."""
+
+"""Kata url: https://www.codewars.com/kata/5936107d40ed69ea1e00003d."""
+
+def coordinate_helper(cmd):
+    x=y=0
+    getd=lambda d,s:(d==s[0])-(d==s[1])
+    for d, n in cmd:
+        if d and (n:=d[1:]).isdigit():
+            x += getd(d,"DA") * int(n)
+            y += getd(d,"WS") * int(n) 
+    return x, y