fix(backdrop): add missing export

(cherry picked from commit 8609b06)

Author: xidedix

projects/coreui-angular/src/index.ts

@@ -0,0 +1 @@
+export * from './public-api';

projects/coreui-angular/src/lib/backdrop/index.ts

@@ -0,0 +1 @@
+export * from './public_api';

projects/coreui-angular/src/lib/backdrop/public_api.ts

@@ -0,0 +1 @@
+export { BackdropService } from './backdrop.service';

projects/coreui-angular/src/lib/table/table.type.ts

@@ -52,26 +52,27 @@ export interface ITable {
    * @type boolean
    */
   striped?: boolean | string;
-  attributes?: {[key: string]: any};
+  attributes?: { [key: string]: any };
 }
 
 export interface ITableElementProps {
   /**
    * Set the vertical alignment.
    @type 'bottom' | 'middle' | 'top'
    */
-  align?: ('bottom' | 'middle' | 'top')
+  align?: ('bottom' | 'middle' | 'top');
   /**
    * Sets the color context of the component to one of CoreUI’s themed colors.
    * @type Colors
    */
-  color?: Colors
+  color?: Colors;
+  _attributes?: { [key: string]: any };
 }
 
 export interface ITableRowCellProps extends ITableElementProps {
   /**
    * Highlight a table row or cell
    @type boolean
    */
-  active?: boolean
+  active?: boolean;
 }

projects/coreui-angular/src/public-api.ts

@@ -8,6 +8,7 @@ export * from './lib/accordion';
 export * from './lib/alert';
 export * from './lib/avatar';
 export * from './lib/badge';
+export * from './lib/backdrop';
 export * from './lib/breadcrumb';
 export * from './lib/button';
 export * from './lib/button-group';