Updated slt files with latest changes from datafusion and including switch from skipif Datafusion -> query error

[Omega359]

• Reran slt test completion using latest Datafusion
• updated test completion code to switch from skipif Datafusion -> query error/statement error
• switch from AS REAL to AS FLOAT8 to better match the actual meaning of REAL in sqlite
• if DF errors and there are expected results the expected results are included in the comments

Test suite still fails because of apache/datafusion#13784 - Marked two tests as skipped with link to DF issue

[alamb]

I skimmed this PR and the changes I could see look good to me

Let's get this in and move on

[alamb]

Thanks @Omega359