[ADD] all classes and packages according to class diagram

app/src/main/java/com/a1/nextlocation/recyclerview/CouponAdapter.java

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+package com.a1.nextlocation.recyclerview;
+
+public class CouponAdapter {
+
+    class CouponViewHolder {
+
+    }
+}

app/src/main/java/com/a1/nextlocation/recyclerview/CouponListManager.java

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+package com.a1.nextlocation.recyclerview;
+
+public class CouponListManager {
+}

app/src/main/java/com/a1/nextlocation/recyclerview/CouponLoader.java

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+package com.a1.nextlocation.recyclerview;
+
+public class CouponLoader {
+}

app/src/main/java/com/a1/nextlocation/recyclerview/LocationAdapter.java

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+package com.a1.nextlocation.recyclerview;
+
+public class LocationAdapter {
+
+    class LocationViewHolder {
+
+    }
+}

app/src/main/java/com/a1/nextlocation/recyclerview/LocationListManager.java

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+package com.a1.nextlocation.recyclerview;
+
+public class LocationListManager {
+}

app/src/main/java/com/a1/nextlocation/recyclerview/LocationLoader.java

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+package com.a1.nextlocation.recyclerview;
+
+public class LocationLoader {
+}

app/src/main/java/com/a1/nextlocation/recyclerview/RouteAdapter.java

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+package com.a1.nextlocation.recyclerview;
+
+public class RouteAdapter {
+
+    class RouteViewHolder {
+
+    }
+}

app/src/main/java/com/a1/nextlocation/recyclerview/RouteListManager.java

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+package com.a1.nextlocation.recyclerview;
+
+public class RouteListManager {
+}

app/src/main/java/com/a1/nextlocation/recyclerview/RouteLoader.java

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+package com.a1.nextlocation.recyclerview;
+
+public class RouteLoader {
+}