[Plugin-1730] Adding XLS UI elements for gcs file source

[psainics]

Adding XLS UI elements for gcs source

Jira : Plugin-1730

Description

This PR adds UI element required for XLS Support in GCS Source. Ref : XLS Support PR https://github.com/cdapio/hydrator-plugins/pull/1835

Added Fields

• Terminate If Empty Row
• Select Sheet Using
• Sheet Value

A filter is used to show XLS specific values Terminate If Empty Row , Select Sheet Using, Sheet Value only when format XLS is selected.

Preview