[ASTERIXDB-2484][FUN] Supporting SINH, COSH and TANH functions

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

Details:
- Added support for sinh, cosh and tanh Math functions.
- Added sinh, cosh and tanh test cases.
- Added sinh, cosh and tanh documentation.

Change-Id: I0853bfe4511ad5b087b875005719957ee23e8575
Reviewed-on: https://asterix-gerrit.ics.uci.edu/3041
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Dmitry Lychagin <dmitry.lychagin@couchbase.com>
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
index 362f722..07d054d 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
@@ -6258,16 +6258,31 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="numeric">
+      <compilation-unit name="cosh">
+        <output-dir compare="Text">cosh</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
       <compilation-unit name="sin">
         <output-dir compare="Text">sin</output-dir>
       </compilation-unit>
     </test-case>
     <test-case FilePath="numeric">
+      <compilation-unit name="sinh">
+        <output-dir compare="Text">sinh</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
       <compilation-unit name="tan">
         <output-dir compare="Text">tan</output-dir>
       </compilation-unit>
     </test-case>
     <test-case FilePath="numeric">
+      <compilation-unit name="tanh">
+        <output-dir compare="Text">tanh</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
       <compilation-unit name="exp">
         <output-dir compare="Text">exp</output-dir>
       </compilation-unit>