Add changelog entry

Author: jaredmoo

src/Sql/Sql/ChangeLog.md

@@ -20,6 +20,7 @@
 ## Upcoming Release
 * Updated cmdlets with plural nouns to singular, and deprecated plural names.
 * Enhanced process of multiple columns classification.
+* Include sku properties (sku name, family, capacity) in resposne from Get-AzSqlServerServiceObjective and format as table by default.
 
 ## Version 1.8.0
 * Support Database Data Classification.