[KYUUBI #1439] Add KYUUBI_CTL_JAVA_OPTS to configure java opts of kyuubi-ctl.

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### _Why are the changes needed?_
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Add KYUUBI_CTL_JAVA_OPTS to configure java opts of kyuubi-ctl. For details: #1439.

### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [ ] Add screenshots for manual tests if appropriate

- [X] [Run test](https://kyuubi.readthedocs.io/en/latest/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #1440 from wForget/KYUUBI-1439.

Closes #1439

bbbf1f2 [wForget] [KYUUBI-1439] Add KYUUBI_CTL_JAVA_OPTS to configure java opts of kyuubi-ctl. update settings.md
da7779a [wForget] [KYUUBI-1439] Add KYUUBI_CTL_JAVA_OPTS to configure java opts of kyuubi-ctl.

Authored-by: wForget <643348094@qq.com>
Signed-off-by: Kent Yao <yao@apache.org>

Author: wForget

bin/kyuubi-ctl

@@ -41,4 +41,4 @@ fi
 
 KYUUBI_CLASSPATH="${KYUUBI_JAR_DIR}/*:${KYUUBI_CONF_DIR}:${HADOOP_CONF_DIR}"
 
-exec ${RUNNER} ${KYUUBI_JAVA_OPTS} -cp ${KYUUBI_CLASSPATH} $CLASS "$@"
+exec ${RUNNER} ${KYUUBI_CTL_JAVA_OPTS} -cp ${KYUUBI_CLASSPATH} $CLASS "$@"

conf/kyuubi-env.sh.template

@@ -29,6 +29,8 @@
 #                           (Default: 5)
 # - KYUUBI_JAVA_OPTS        JVM options for the Kyuubi server itself in the form "-Dx=y".
 #                           (Default: none).
+# - KYUUBI_CTL_JAVA_OPTS    JVM options for the Kyuubi ctl itself in the form "-Dx=y".
+#                           (Default: none).
 # - KYUUBI_BEELINE_OPTS     JVM options for the Kyuubi BeeLine in the form "-Dx=Y".
 #                           (Default: none)
 # - KYUUBI_NICENESS         The scheduling priority for Kyuubi server.

docs/deployment/settings.md

@@ -64,6 +64,8 @@ You can configure the environment variables in `$KYUUBI_HOME/conf/kyuubi-env.sh`
 #                           (Default: 5)
 # - KYUUBI_JAVA_OPTS        JVM options for the Kyuubi server itself in the form "-Dx=y".
 #                           (Default: none).
+# - KYUUBI_CTL_JAVA_OPTS    JVM options for the Kyuubi ctl itself in the form "-Dx=y".
+#                           (Default: none).
 # - KYUUBI_BEELINE_OPTS     JVM options for the Kyuubi BeeLine in the form "-Dx=Y".
 #                           (Default: none)
 # - KYUUBI_NICENESS         The scheduling priority for Kyuubi server.