Added stable library for lifecycle view model (#252)

Co-authored-by: RakshakGaind0910 <[email protected]>

telnyx_rtc/build.gradle

@@ -13,7 +13,7 @@ apply plugin: 'maven-publish'
 apply plugin: "com.bugsnag.android.gradle"
 
 def getVersionName = { ->
-    return "v1.2.15-alpha"
+    return "v1.2.16-alpha"
 }
 
 def getArtifactId = { ->
@@ -275,4 +275,8 @@ dependencies {
 
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+    def lifecycle_version = "2.4.0"
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
 }