Move Local Source to separate module (#9152)

* Move Local Source to separate module

* Review changes

core-metadata/build.gradle.kts

@@ -0,0 +1,21 @@
+plugins {
+    id("com.android.library")
+    kotlin("android")
+    kotlin("plugin.serialization")
+}
+
+android {
+    namespace = "tachiyomi.core.metadata"
+
+    defaultConfig {
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+}
+
+dependencies {
+    implementation(project(":source-api"))
+
+    implementation(kotlinx.bundles.serialization)
+}