Rework DescriptorSerializerPlugin to be a part of Project's extensions

instead of statically registering it.

Static registering can cause subtle errors when plugin implementation
(e.g. SerializationDescriptorPluginForKotlinxSerialization) is registered
from multiple classloaders: in multi-module with daemon compilation scenario

 #KT-41857 Fixed

compiler/tests/org/jetbrains/kotlin/serialization/js/KotlinJavascriptSerializerTest.kt

@@ -84,7 +84,8 @@ class KotlinJavascriptSerializerTest : TestCaseWithTmpdir() {
             )
             val serializedMetadata = KotlinJavascriptSerializationUtil.serializeMetadata(
                     analysisResult.bindingContext, description, configuration.languageVersionSettings,
-                    configuration.get(CommonConfigurationKeys.METADATA_VERSION) as? JsMetadataVersion ?: JsMetadataVersion.INSTANCE
+                    configuration.get(CommonConfigurationKeys.METADATA_VERSION) as? JsMetadataVersion ?: JsMetadataVersion.INSTANCE,
+                    config.project
             )
             FileUtil.writeToFile(metaFile, serializedMetadata.asString())
         }