Create Keyspace if missing option

[cleaton]

[cleaton]

Maybe it's preferable to always first connect without keyspace and run the keyspace creation CQL before connecting to the keyspace.

[csrl]

Hi @silviucpp , what do you think of this PR? It would be useful for us. Is there a change that you want done?

[silviucpp]

This PR needs a bit of changes.

First we need to get rid of representing strings as lists.there are few places like the following (_ -> "")

            Keyspace = case erlcass_utils:get_env(keyspace) of
                {ok, Space} -> Space;
                _ -> ""
            end,

In the entire library we are working with binary strings and I want to keep it consistent.

Also this PR doesn't have a unit test added for this case.

In case this things are fixed I can merge it