Moded track controller related models to a new file

src/models/CreateTrack.ts

@@ -0,0 +1,21 @@
+import { IsInt, IsNotEmpty, IsPositive, IsString } from 'class-validator';
+import { Track } from './Track';
+
+export class CreateTrack {
+    @IsString()
+    @IsNotEmpty()
+    name: string;
+
+    @IsInt()
+    @IsPositive()
+    distance: number;
+
+    public getTrack(): Track {
+        let newTrack: Track = new Track();
+
+        newTrack.name = this.name;
+        newTrack.distance = this.distance;
+
+        return newTrack;
+    }
+}