[Syntax] proc sql label, length & format

[Criptic]

Describe the bug
When working in the extension proc sql in the select statement does not support highligthing for format and label statements. SAS Studio in addition also doesn't support the length statement, which the extension supports

Steps to reproduce
Steps to reproduce the behavior:

1. Copy and paste the following example code:
   proc sql; create table work.test as select dhms('01JAN1970'd, 0, 0, a.dt) as date_time format datetime20. label='Datetime of the weather' length 8

Expected behavior
Consistent highligthing and autocompletion for proc sql.

Environment (please complete the following information):
Client OS: Windows 11
Extension version: v1.11
SAS version: Viya 2024.10