Replaced all maps in the handleMessage method with the MessageStruct,
except for the final result, as this one uses the key 'values', where
the rest use the key 'value'. Once this has been changed in the frontend
it will be updated in the backend as well.

Yay tests!

:)

Fix :)

:)

Wrong things being passed, should work now woo!

Yay!

Everything in order, gl front end :) @Joris + @Lorenzo

Wow! (with Joris + Lorenzo)

In case you want to edit stuff

If there is an error retrieving the database info an error is now
returned.

Most of this code was taken straight from the schema service. No tests
were written because this is entirely dependent on external
dependencies.

The request function now requires database credentials instead of using
hardcoded values.

Moved publishmessage method into separate file.

ie changing names of interfaces and moving structs to other files. Also
gitignore updated to ignore the 'make coverage' outputs.

An error message now gets published if there is an error while
converting the query or there is a database error.

Mainly testing the handlemessage method with different input messages.

Implements the ConvertQuery method and just returns a hardcoded string
value.

Updated integration test