Make SampleSQLBuilder generate related widget page only when necessary

• Type: Technical Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: 7.4.3.7 CE GA7, 7.4.13 DXP U3, Master
• Component/s: Core Infrastructure
• Labels: None

SampleSQLBuilder will generate all these widget pages in advance no matter if the current test case need it, switch to generate the widget page only when it is necessary