Adding in full MTA api.

* Added in support for station search, route specific search, and several time limiting functions
Added in functional backend in flask
* starts flask app
* starts MTA app on another thread
* serves basic webpage which pull subway data from flask backend on button press.

stop.py

@@ -0,0 +1,24 @@
+from time import time
+from datetime import datetime
+from math import trunc
+
+def get_stop_from_dict(obj):
+    if "arrival" in obj and "departure" in obj and "stop_id" in obj:
+        return Stop(obj["arrival"]["time"], obj["departure"]["time"], obj["stop_id"])
+    return None
+
+
+class Stop(object):
+    def __init__(self, arrival_time, departure_time, stop_id):
+        self.arrival_time = arrival_time
+        self.departure_time = departure_time
+        self.stop_id = stop_id
+
+    def arrival_minutes(self):
+        return trunc(((datetime.fromtimestamp(self.arrival_time) - datetime.now()).total_seconds()) / 60)
+
+    def __str__(self):
+        now = datetime.now()
+        time = datetime.fromtimestamp(self.arrival_time)
+        time_minutes = trunc(((time - now).total_seconds()) / 60)
+        return f"arr:{time_minutes}|dep:{self.departure_time}|stop_id:{self.stop_id}"