[sql] Add parenthesis highlight in select
[sql] Correct function call highlight with invalid arguments
[sql] Add specialized next group on all entities
[sql] Highlight calculation operator in select (number only)
[sql] Highlight comparison & combination operators in select (number only)
[sql] Change comparison operators highlight to introduce IN, ANY & ALL
[sql] Begin highlight of IN
[sql] Begin highlight of ANY & ALL
[sql] Change nested function highlight
[sql] Correct nested function / group highlight and continue operation highlight
[sql] Finnish operation highlight
[sql] Add two convenient functions for entities declaration
[sql] Use convenient function fo entities in SELECT
[sql] Add NULL highlight