Kousa: Arch: postgres table names are in camelCase

[ityonemo]

typically one expects postgres column names to be in snake_case, to avoid confusion in case you should decide to port the code to an SQL that has... different casing rules. Ecto kind of expects columns to exist in snake_case. And it might cause headaches if you ever decide to go to Absinthe (elixir's GQL system) b/c Absinthe will try to automatically convert the GQLs from camelCase to sanke_case.

• Not a high priority.
• Must come after unit tests against all of the database tables