fix(lib-module): import mat-select module properly

Author: HaidarZ

package-lock.json

@@ -1,9 +1,12 @@
 import {NgModule} from '@angular/core';
 import {MatSelectInfiniteScrollDirective} from './mat-select-infinite-scroll.directive';
+import {MatSelectModule} from '@angular/material/select';
 
 @NgModule({
   declarations: [MatSelectInfiniteScrollDirective],
-  imports: [],
+  imports: [
+    MatSelectModule
+  ],
   exports: [MatSelectInfiniteScrollDirective]
 })
 export class MatSelectInfiniteScrollModule {