add atomicwrites to pipenv

- Add atomicwrites to fix windows build
- Regenerate requirements.txt

requirements.txt

@@ -1,16 +1,16 @@
--i https://pypi.python.org/simple
-aiohttp==4.0.0a0
+aiohttp==3.6.2
 async-timeout==3.0.1
-attrs==19.1.0
+atomicwrites==1.3.0
+attrs==19.3.0
 chardet==3.0.4
 docopt==0.6.2
 hbmqtt==0.9.5
 idna==2.8
-multidict==4.5.2
-passlib==1.7.1
-pyyaml==5.1.1
-six==1.12.0
-tinydb==3.13.0
-transitions==0.6.9
-websockets==7.0
-yarl==1.3.0
+multidict==4.7.3
+passlib==1.7.2
+PyYAML==5.2
+six==1.13.0
+tinydb==3.15.2
+transitions==0.7.1
+websockets==8.1
+yarl==1.4.2