Create tutashared and remove shared code from Calendar

This commit moves code that can be shared between Calendar and Mail app
to a shared module. Also creates a ModuleBuildConfig to share build
configs between Apps and Module.

Author: mup

app-android/calendar/build.gradle.kts

@@ -59,9 +59,9 @@ android {
 			isJniDebuggable = true
 		}
 		release {
+			manifestPlaceholders += mapOf()
 			isMinifyEnabled = true
 			resValue("string", "package_name", "de.tutao.calendar")
-			setProguardFiles(listOf(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"))
 			manifestPlaceholders["contentProviderAuthority"] = "de.tutao.fileprovider"
 
 		}
@@ -130,6 +130,7 @@ android {
 }
 
 dependencies {
+	implementation(project(":tutashared"))
 	val room_version = "2.4.2"
 	val lifecycle_version = "2.4.1"
 	val activity_version = "1.4.0"

app-android/calendar/proguard-rules.pro

@@ -64,7 +64,7 @@
 # If you have any, uncomment and replace classes with those containing named companion objects.
 -keepattributes InnerClasses # Needed for `getDeclaredClasses`.
 -if @kotlinx.serialization.Serializable class
-de.tutao.calendar.IdTuple # <-- List serializable classes with named companions.
+de.tutao.tutashared.IdTuple # <-- List serializable classes with named companions.
 {
     static **$* *;
 }

app-android/calendar/src/main/java/de/tutao/calendar/AndroidCommonSystemFacade.kt

@@ -1,17 +1,18 @@
 package de.tutao.calendar
 
-import de.tutao.calendar.ipc.CommonSystemFacade
-import de.tutao.calendar.ipc.SqlCipherFacade
+import de.tutao.tutashared.TempDir
+import de.tutao.tutashared.ipc.CommonSystemFacade
+import de.tutao.tutashared.ipc.SqlCipherFacade
 import kotlinx.coroutines.CompletableDeferred
 import org.apache.commons.io.IOUtils
 import java.io.File
 import java.nio.charset.Charset
 import kotlin.random.Random
 
 class AndroidCommonSystemFacade(
-		private val activity: MainActivity,
-		private val sqlCipherFacade: SqlCipherFacade,
-		private val tempDir: TempDir
+	private val activity: MainActivity,
+	private val sqlCipherFacade: SqlCipherFacade,
+	private val tempDir: TempDir
 ) : CommonSystemFacade {
 
 	@Volatile