build.gradle.kts: moved module-info and java9 related configuration to precompiled script plugins

buildSrc/build.gradle.kts

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2020 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+plugins {
+	`kotlin-dsl`
+}
+
+// required for kotlin-dsl or embedded-kotlin plugins
+repositories {
+	jcenter()
+}