[JS, Stdlib] Move DOM API to separate module kotlin-dom-api-compat

[JS, Stdlib] Leave sources of dom api inside stdlib

[Stdlib, JS] Leave ItemArrayLike inside stdlib

libraries/stdlib/api/js/org.w3c.dom.parsing.kt

@@ -1,11 +0,0 @@
-public open external class DOMParser {
-    public constructor DOMParser()
-
-    public final fun parseFromString(str: kotlin.String, type: dynamic): org.w3c.dom.Document
-}
-
-public open external class XMLSerializer {
-    public constructor XMLSerializer()
-
-    public final fun serializeToString(root: org.w3c.dom.Node): kotlin.String
-}