Add in a mechanism for email confirmation

This is some of the way there but it is still missing at least:
- An actual page to view to confirm the email
- An expiry time on the minted JWT (and other JWT issues like "sub")

setup.py

@@ -5,5 +5,6 @@ setup(
     verison='0.0.1',
     packages=find_packages(),
     include_package_data=True,
+    package_data={'src': ['templates/**/*.html', 'templates/**/*.txt']},
     scripts=['./src/main.py'],
 )