[DE-682] unify exception handling

[aburmeis]

Currently Arango Spring Data handles ArangoDBException using ArangoExceptionTranslator for most methods of ArangoOperations except the query() ones. This is not handy and not what a user would expect from a Spring Data implementation as all queries (derived queries and those using @Query annotation) end up in a query call throwing ArangoDBException instead of the expected DataAccessException.

So even query() should use exception translation and maybe ArangoExceptionTranslator could be improved using error numbers to translate exceptions more specific.

[rashtao]

In ba4a37f I reverted your changes to translate via ArangoExceptionTranslator exceptions in ArangoOperations.query().