bump camera to 1.1.0RC01 and unify version info

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

app/build.gradle

@@ -145,6 +145,7 @@ android {
 }
 
 ext {
+    androidxCameraVersion = "1.1.0-rc01"
     butterknifeVersion = "10.2.3"
     coilKtVersion = "2.1.0"
     daggerVersion = "2.42"
@@ -192,10 +193,10 @@ dependencies {
     })
     implementation 'org.conscrypt:conscrypt-android:2.5.2'
 
-    implementation 'androidx.camera:camera-core:1.0.2'
-    implementation 'androidx.camera:camera-camera2:1.0.2'
-    implementation 'androidx.camera:camera-lifecycle:1.0.2'
-    implementation 'androidx.camera:camera-view:1.0.0-alpha28'
+    implementation "androidx.camera:camera-core:${androidxCameraVersion}"
+    implementation "androidx.camera:camera-camera2:${androidxCameraVersion}"
+    implementation "androidx.camera:camera-lifecycle:${androidxCameraVersion}"
+    implementation "androidx.camera:camera-view:${androidxCameraVersion}"
     implementation "androidx.exifinterface:exifinterface:1.3.3"
 
     implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'