SqlStringHelper.RemoveAsAliasesFromSql remove *all* aliases

[Louis9902]

This removes multiple occurrences of aliases from the sql string not just the last one.

I had the problem while using the following projection, which results in invalid sql (sqlserver)

Projections.Distinct(Projections.ProjectionList()
.Add(Projections.Max(() => ability.Role))
.Add(Projections.GroupProperty(Projections.RootEntity())))

[Louis9902]

@hazzik can you or somebody else maybe approve the ci run, so I can check if everything works?

[Louis9902]

Okay, the MySQL failure seems to be unrelated, because it somehow breaks in the authentication step.

[hazzik]

We need some tests, otherwise we would not be able to accept the contribution.