Add files necessary for production deployment

* Dockerfile, docker-compose template
* nginx config
* uwsgi config
* wait-for-postgres script
* requirements.txt
* Some other stuff

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

requirements.txt

@@ -0,0 +1,20 @@
+#
+# These requirements were autogenerated by pipenv
+# To regenerate from the project's Pipfile, run:
+#
+#    pipenv lock --requirements
+#
+
+-i https://pypi.org/simple
+asgiref==3.5.2; python_version >= '3.7'
+django-colorfield==0.7.1
+django-environ==0.9.0
+django-guardian==2.4.0
+django-hcaptcha==0.2.0
+django-minify-html==1.3.0
+django==4.1b1
+minify-html==0.9.2
+pillow==9.2.0
+psycopg2-binary==2.9.3
+sqlparse==0.4.2; python_version >= '3.5'
+uwsgi==2.0.20