fix(grid): hide internal interfaces #8195

Author: hanastasov

projects/igniteui-angular/src/lib/grids/columns/interfaces.ts

@@ -1,6 +1,9 @@
 import { IgxColumnComponent } from './column.component';
 
-
+/**
+ * @hidden
+ * @internal
+ */
 export interface MRLColumnSizeInfo {
     ref: IgxColumnComponent;
     width: number;
@@ -9,6 +12,10 @@ export interface MRLColumnSizeInfo {
     widthSetByUser: boolean;
 }
 
+/**
+ * @hidden
+ * @internal
+ */
 export interface MRLResizeColumnInfo {
     target: IgxColumnComponent;
     spanUsed: number;

projects/igniteui-angular/src/lib/grids/public_api.ts

@@ -1,6 +1,7 @@
 export * from './api.service';
 export * from './cell.component';
 export * from './columns/column.component';
+export * from './columns/interfaces';
 export * from './common/events';
 export * from './row.directive';
 export * from './grid-base.directive';