Build: add kotlin.build.useIRForLibraries to enable JVM IR for libraries separately

The next step for JVM IR adoption in our project is going to be enabling
`kotlin.build.useIR`, but keeping `kotlin.build.useIRForLibraries`
disabled until we fix all remaining ABI incompatibility issues for
library code.

libraries/tools/script-runtime/build.gradle

@@ -39,3 +39,5 @@ compileKotlin {
             "-module-name", project.name
     ]
 }
+
+configureJvmIrBackend(project)