give debug package separate app ID and name

allows installing debug version alongside the store one

android/vcmi-app/build.gradle

@@ -23,6 +23,10 @@ android {
 	buildTypes {
 		debug {
 			debuggable true
+			applicationIdSuffix '.debug'
+			manifestPlaceholders = [
+				applicationLabel: 'VCMI debug',
+			]
 			ndk {
 				debugSymbolLevel 'full'
 			}
@@ -32,6 +36,9 @@ android {
 			zipAlignEnabled true
 			signingConfig signingConfigs.releaseSigning
 			proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+			manifestPlaceholders = [
+				applicationLabel: '@string/app_name',
+			]
 			ndk {
 				debugSymbolLevel 'symbol_table'
 			}

android/vcmi-app/src/main/AndroidManifest.xml

@@ -11,7 +11,7 @@
         android:allowBackup="false"
         android:installLocation="auto"
         android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
+        android:label="${applicationLabel}"
         android:testOnly="false"
         android:supportsRtl="true"
         android:theme="@style/Theme.VCMI">