Set up python environment for easier development

new.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+d="problems/$1"; mkdir -p "$d"
+cat > "$d/solution.py" <<'EOF'
+class Solution:
+    def solve(self):
+        pass
+EOF
+cat > "$d/solution_test.py" <<'EOF'
+from solution import Solution
+def test_solve():
+    assert Solution().solve() is None
+EOF