Add basic autoplay features to frontend

Rudimentary play for white against engine is now possible.

adapter/adapter.py

@@ -22,6 +22,10 @@ engine = subprocess.Popen(
 )
 
 
+def reverse(zipped):
+    return ((b, a) for a, b in zipped)
+
+
 def make_piece(piece_str):
     piece_type, color = piece_str
     return {
@@ -68,5 +72,12 @@ def make_move():
     return flask.jsonify(parse_state(state_str))
 
 
+@app.route("/choose_move/", methods=["POST"])
+def choose_move():
+    color = dict(reverse(COLOR))[flask.request.json]
+    move = ask_engine(f"choose_move,{color}")
+    return flask.jsonify(move)
+
+
 if __name__ == "__main__":
     app.run(debug=True, host="127.0.0.1", port=3000)