Improve daemon client debug reports

Before this change a daemon client debug messages were printed
only when the client could not connect and the 'kotlin.daemon.verbose'
system property was set up.

Now messages are printed if the debug logging is enabled and
the 'kotlin.daemon.verbose' is set up.

Original commit: 9819de1abd

jps/jps-plugin/src/org/jetbrains/kotlin/compilerRunner/JpsKotlinLogger.kt

@@ -34,4 +34,7 @@ internal class JpsKotlinLogger(private val log: Logger) : KotlinLogger {
     override fun debug(msg: String) {
         log.debug(msg)
     }
+
+    override val isDebugEnabled: Boolean
+        get() = log.isDebugEnabled
 }