Specify all environment variables under the hermes prefix

[renehernandez]

All environment variables should start with HERMES_ prefix. Camper variables should be updated as follows:

• BASECAMP_CLIENT_ID -> HERMES_BASECAMP_CLIENT_ID
• BASECAMP_CLIENT_SECRET -> HERMES_BASECAMP_CLIENT_SECRET
• BASECAMP_ACCOUNT_NUMBER -> HERMES_BASECAMP_ACCOUNT_NUMBER
• BASECAMP_REFRESH_TOKEN -> HERMES_BASECAMP_REFRESH_TOKEN
• BASECAMP_ACCESS_TOKEN -> HERMES_BASECAMP_ACCESS_TOKEN