[Feature] implement transpose command as in the roadmap opensearch-project#4786 (opensearch-project#5011)

* transpose command implementation

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* transpose rows to columns

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added argument type missing map and hashmap

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added tests

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added more validations

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added validation

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* index.md formatting fix

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* doc format

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* coderabbit review fixes

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added recommended changes

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added recommended changes

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* for cross cluster failure debugging

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* for cross cluster failure debugging

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* for cross cluster failure debugging

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* trim columnName

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* per review moved to class varialble.

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* per review moved to class varialble.

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* added field resolution

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* fix by removing metadata field

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

* fixed explain test after removing of metadata fields in transpose result

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>

---------

Signed-off-by: Asif Bashar <asif.bashar@gmail.com>
# Conflicts:
#	integ-test/src/test/java/org/opensearch/sql/ppl/NewAddedCommandsIT.java
#	ppl/src/main/antlr/OpenSearchPPLLexer.g4

Author: asifabashar

integ-test/src/test/java/org/opensearch/sql/ppl/NewAddedCommandsIT.java

@@ -213,6 +213,7 @@ public void testTransposeCommand() throws IOException {
     }
   }
 
+
   @Test
   public void testFieldFormatCommand() throws IOException {
     JSONObject result;