Ci integration upgrade (#14)

- Circleci setup
 - gradle version updated
 - snapshots added
 - separated test files by flavour

build.gradle

@@ -1,36 +1,26 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
-
 buildscript {
-    
     ext {
-        kotlin_version = '1.3.72'
+        kotlin_version = '1.5.20'
     }
     repositories {
-        google()
-        jcenter()
+        maven { url "https://www.jitpack.io" }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-
-        def nav_version = "2.3.0"
-        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
-
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
+        classpath("androidx.navigation:navigation-safe-args-gradle-plugin:2.4.1")
+        classpath ('com.android.tools.build:gradle:7.2.2')
+        classpath ("org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.20")
     }
 }
 
-allprojects {
-    repositories {
-        jcenter()
-        google()
-        maven {
-            url 'https://maven.tomtom.com:8443/nexus/content/repositories/releases/'
-        }
-    }
+plugins {
+    id 'com.android.application' version '7.2.2' apply false
+    id 'com.android.library' version '7.2.2' apply false
+    id 'com.google.gms.google-services' version '4.3.15' apply false
+    id 'androidx.navigation.safeargs.kotlin' version '2.4.0' apply false
+    id 'org.jetbrains.kotlin.android' version "$kotlin_version" apply false
 }
 
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
+}