Added BroadActivity and SubActivity model

app/src/main/java/app/insti/adapter/ActivitiesAdapter.java

+package app.insti.adapter;
+
+public class ActivitiesAdapter {
+}

app/src/main/java/app/insti/api/model/BroadActivity.java

+package app.insti.api.model;
+
+public class BroadActivity {
+}

app/src/main/java/app/insti/api/model/SubActivity.java

+package app.insti.api.model;
+
+public class SubActivity {
+}

app/src/main/res/layout/resource_layout_broad_activities.xml

+<?xml version="1.0" encoding="utf-8"?>
+<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="16dp"
+    android:elevation="6dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="16dp">
+
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="180dp"
+            android:adjustViewBounds="true"
+            android:scaleType="centerCrop"
+            android:id="@+id/imgViewActivity">
+        </ImageView>
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:id="@+id/txtViewActivity"
+            style="@style/TextAppearance.AppCompat.Title"
+            android:layout_marginTop="10dp">
+        </TextView>
+
+
+    </LinearLayout>
+
+</androidx.cardview.widget.CardView>
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