Create ContributesNode annotation to generate module and assistedFactory for node.

anvilannotations/src/main/java/io/element/android/x/anvilannotations/ContributesNode.kt

@@ -0,0 +1,23 @@
+package io.element.android.x.anvilannotations
+
+import kotlin.reflect.KClass
+
+/**
+ * Adds Node to the specified component graph.
+ * Equivalent to the following declaration:
+ *
+ * @Module
+ * @ContributesTo(Scope::class)
+ * abstract class YourNodeModule {
+
+ *  @Binds
+ *  @IntoMap
+ *  @NodeKey(YourNode::class)
+ *  abstract fun bindYourNodeFactory(factory: YourNode.Factory): AssistedNodeFactory<*>
+ *}
+
+ */
+@Target(AnnotationTarget.CLASS)
+annotation class ContributesNode(
+    val scope: KClass<*>,
+)