More SQL sorting options across whole application

[nahiyan-yasaar-selise]

Please add the following SQL sorting abilities:

• Hierarchical sorting e.g. Field1 ASC, Field2 DESC that first sorts by field 1 then sorts by field 2
• Custom sorting e.g. CASE WHEN Field1 = 'Val1' THEN 0 WHEN Field2 = 'Val2' THEN 1 ELSE 2 END