Add a basic map view to app

app/build.gradle

@@ -23,6 +23,10 @@ android {
     }
 }
 
+repositories {
+    mavenCentral()
+}
+
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
@@ -35,4 +39,6 @@ dependencies {
     androidTestImplementation 'androidx.test.ext:junit:1.1.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
     implementation 'androidx.recyclerview:recyclerview:1.1.0'
+    implementation 'org.osmdroid:osmdroid-android:6.1.5'
+    implementation "androidx.preference:preference-ktx:1.1.0"
 }