Change how requirements.txt is handled

Author: brettcannon

containers/python-3-postgres/.vscode/launch.json

@@ -16,7 +16,8 @@
                 "--noreload",
                 "--nothreading"
             ],
-            "django": true
+			"django": true,
+			"preLaunchTask": "pip install"
         }
     ]
-}
+}

containers/python-3-postgres/.vscode/tasks.json

@@ -0,0 +1,10 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "pip install",
+            "type": "shell",
+            "command": "pip install -r ./test-project/requirements.txt"
+        }
+    ]
+}

containers/python-3-postgres/requirements.txt

@@ -1 +1,2 @@
-Django
+Django
+psycopg2-binary