[SPARK-20641][CORE] Add missing kvstore module in Laucher and SparkSubmit code

There're two code in Launcher and SparkSubmit will will explicitly list all the Spark submodules, newly added kvstore module is missing in this two parts, so submitting a minor PR to fix this.

Author: jerryshao <sshao@hortonworks.com>

Closes #19014 from jerryshao/missing-kvstore.

core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala

@@ -988,7 +988,7 @@ private[spark] object SparkSubmitUtils {
   // We need to specify each component explicitly, otherwise we miss spark-streaming-kafka-0-8 and
   // other spark-streaming utility components. Underscore is there to differentiate between
   // spark-streaming_2.1x and spark-streaming-kafka-0-8-assembly_2.1x
-  val IVY_DEFAULT_EXCLUDES = Seq("catalyst_", "core_", "graphx_", "launcher_", "mllib_",
+  val IVY_DEFAULT_EXCLUDES = Seq("catalyst_", "core_", "graphx_", "kvstore_", "launcher_", "mllib_",
     "mllib-local_", "network-common_", "network-shuffle_", "repl_", "sketch_", "sql_", "streaming_",
     "tags_", "unsafe_")
 

launcher/src/main/java/org/apache/spark/launcher/AbstractCommandBuilder.java

@@ -144,6 +144,7 @@ abstract class AbstractCommandBuilder {
     if (prependClasses || isTesting) {
       String scala = getScalaVersion();
       List<String> projects = Arrays.asList(
+        "common/kvstore",
         "common/network-common",
         "common/network-shuffle",
         "common/network-yarn",