[ASTERIXDB-2516][RT] Make asterix types comparators singleton and stateless

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
Avoid creating asterix types comparators when they could be made singleton.

Change-Id: I65972162ed2cf14d1f2654dbf00442aa35dd5c01
Reviewed-on: https://asterix-gerrit.ics.uci.edu/3255
Reviewed-by: Michael Blow <mblow@apache.org>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml
index d4b1088..7e00d82 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml
@@ -87,6 +87,11 @@
   <dependencies>
     <dependency>
       <groupId>org.apache.hyracks</groupId>
+      <artifactId>hyracks-data-std</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.hyracks</groupId>
       <artifactId>hyracks-control-common</artifactId>
       <version>${project.version}</version>
       <scope>test</scope>