Move constracts under contract package

app/src/main/java/fr/free/nrw/commons/nearby/mvp/contract/NearbyContract.java

@@ -0,0 +1,24 @@
+package fr.free.nrw.commons.nearby.mvp.contract;
+
+/**
+ * General View and UserAction methods are defined under
+ * this interface. This interface can be considered parent
+ * of both NearbyMapContract and NearbyListContract
+ */
+public interface NearbyContract {
+
+    interface View {
+        void showPlaces();
+    }
+
+    interface UserActions {
+        void uploadImageGallery();
+        void uploadImageCamera();
+        void bookmarkItem();
+        void getDirections();
+        void seeWikidataItem();
+        void seeWikipediaArticle();
+        void seeCommonsFilePage();
+        void rotateScreen();
+    }
+}

app/src/main/java/fr/free/nrw/commons/nearby/mvp/contract/NearbyListContract.java

@@ -0,0 +1,20 @@
+package fr.free.nrw.commons.nearby.mvp.contract;
+
+import fr.free.nrw.commons.nearby.mvp.contract.NearbyContract;
+
+/**
+ * This interface defines specific View and UserActions for list
+ * part of the nearby. On the other hand both extends methods
+ * from parent View and UserActions where general methods are
+ * defined (in Nearby Contract)
+ */
+public interface NearbyListContract {
+
+    interface View extends NearbyContract.View {
+        // Even if this is empty for now, I keep this one for code consistency
+    }
+
+    interface UserActions extends NearbyContract.UserActions {
+        void expandItem();
+    }
+}

app/src/main/java/fr/free/nrw/commons/nearby/mvp/contract/NearbyMapContract.java

@@ -0,0 +1,23 @@
+package fr.free.nrw.commons.nearby.mvp.contract;
+
+import fr.free.nrw.commons.nearby.mvp.contract.NearbyContract;
+
+/**
+ * This interface defines specific View and UserActions for map
+ * part of the nearby. On the other hand both extends methods
+ * from parent View and UserActions where general methods are
+ * defined (in Nearby Contract)
+ */
+public interface NearbyMapContract {
+
+    interface View extends NearbyContract.View{
+        void showSearchThisAreaButton();
+        void showInformationBottomSheet();
+        void showFABs();
+    }
+
+    interface UserActions extends NearbyContract.UserActions {
+        void searchThisArea();
+        void recenterMap();
+    }
+}