add werkzeug and django-extensions for developing

Pipfile

@@ -5,6 +5,9 @@ verify_ssl = true
 
 [dev-packages]
 pudb = "*"
+django-extensions = "*"
+werkzeug = "*"
+pydotplus = "*"
 
 [packages]
 django = "*"

coinmanager/coinmanager/settings.py

@@ -38,6 +38,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'django_extensions',
 ]
 
 MIDDLEWARE = [