fix models exports

Author: c1sar

package.json

@@ -1,6 +1,6 @@
 {
   "name": "slider-library",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "author": "c1sar",
   "description": "Angular 6 Simple slider",
   "keywords": [

projects/slider/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ng2-slider",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "author": "c1sar",
   "description": "Angular 6 Simple slider",
   "keywords": ["Angular 6", "angular", "slider", "slide", "c1sar"],

projects/slider/src/lib/slider.service.spec.ts

@@ -2,6 +2,12 @@
  * Public API Surface of slider
  */
 
-export * from './lib/slider.service';
+export * from './lib/models/ISliderEvent';
+export * from './lib/models/IOptions';
+export * from './lib/models/ISlide';
+export * from './lib/models/IButton';
+export * from './lib/models/animation-type.enum';
+export * from './lib/models/bullet-type.enum';
+export * from './lib/models/IButton';
 export * from './lib/slider.component';
 export * from './lib/slider.module';