Feat/importpreview2 (#6506)

* Allow column resizing in preview table

* added property to TableComponentProperties

* hooked up new prop into model view

* new setOptions

* adding enum to azdata interface

* bring in slickgrid 2.3.30

* PR feedback

src/sql/azdata.proposed.d.ts

@@ -3206,11 +3206,18 @@ declare module 'azdata' {
 		customAction = 1
 	}
 
+	export enum ColumnSizingMode {
+		ForceFit = 0,	// all columns will be sized to fit in viewable space, no horiz scroll bar
+		AutoFit = 1,	// columns will be ForceFit up to a certain number; currently 3.  At 4 or more the behavior will switch to NO force fit
+		DataFit = 2		// columns use sizing based on cell data, horiz scroll bar present if more cells than visible in view area
+	}
+
 	export interface TableComponentProperties extends ComponentProperties {
 		data: any[][];
 		columns: string[] | TableColumn[];
 		fontSize?: number | string;
 		selectedRows?: number[];
+		forceFitColumns?: ColumnSizingMode;
 	}
 
 	export interface FileBrowserTreeProperties extends ComponentProperties {