Refactor json.test to suite/json

 Changes to be committed:
	modified:   mysql-test/mysql-test-run.pl
	deleted:    mysql-test/r/json.result
	new file:   mysql-test/suite/json/inc/json_client.inc
	new file:   mysql-test/suite/json/inc/json_ddl.inc
	new file:   mysql-test/suite/json/inc/json_fulltext.inc
	renamed:    mysql-test/t/json.test -> mysql-test/suite/json/inc/json_functions.inc
	new file:   mysql-test/suite/json/inc/json_gcol.inc
	new file:   mysql-test/suite/json/inc/json_group_concat.inc
	new file:   mysql-test/suite/json/inc/json_insert.inc
	renamed:    mysql-test/include/json_vs_json_comparator.inc -> mysql-test/suite/json/inc/json_vs_json_comparator.inc
	renamed:    mysql-test/include/sql_vs_json_equalto.inc -> mysql-test/suite/json/inc/sql_vs_json_equalto.inc
	renamed:    mysql-test/include/sql_vs_json_greaterthan.inc -> mysql-test/suite/json/inc/sql_vs_json_greaterthan.inc
	renamed:    mysql-test/include/sql_vs_json_greaterthanequalto.inc -> mysql-test/suite/json/inc/sql_vs_json_greaterthanequalto.inc
	renamed:    mysql-test/include/sql_vs_json_lessthan.inc -> mysql-test/suite/json/inc/sql_vs_json_lessthan.inc
	renamed:    mysql-test/include/sql_vs_json_lessthanequalto.inc -> mysql-test/suite/json/inc/sql_vs_json_lessthanequalto.inc
	renamed:    mysql-test/include/sql_vs_json_notequal.inc -> mysql-test/suite/json/inc/sql_vs_json_notequal.inc
	renamed:    mysql-test/include/sql_vs_json_null_safe_equal_to.inc -> mysql-test/suite/json/inc/sql_vs_json_null_safe_equal_to.inc
	new file:   mysql-test/suite/json/r/json_client_innodb.result
	new file:   mysql-test/suite/json/r/json_client_ndb.result
	new file:   mysql-test/suite/json/r/json_conversions.result
	new file:   mysql-test/suite/json/r/json_ddl_innodb.result
	new file:   mysql-test/suite/json/r/json_ddl_ndb.result
	new file:   mysql-test/suite/json/r/json_fulltext_innodb.result
	new file:   mysql-test/suite/json/r/json_functions_innodb.result
	new file:   mysql-test/suite/json/r/json_functions_ndb.result
	new file:   mysql-test/suite/json/r/json_gcol_innodb.result
	new file:   mysql-test/suite/json/r/json_group_concat_innodb.result
	new file:   mysql-test/suite/json/r/json_group_concat_ndb.result
	new file:   mysql-test/suite/json/r/json_innodb.result
	new file:   mysql-test/suite/json/r/json_insert_innodb.result
	new file:   mysql-test/suite/json/r/json_insert_ndb.result
	new file:   mysql-test/suite/json/r/json_no_table.result
	new file:   mysql-test/suite/json/t/json_client_innodb.test
	new file:   mysql-test/suite/json/t/json_client_ndb.test
	new file:   mysql-test/suite/json/t/json_conversions.test
	new file:   mysql-test/suite/json/t/json_ddl_innodb.test
	new file:   mysql-test/suite/json/t/json_ddl_ndb.test
	new file:   mysql-test/suite/json/t/json_fulltext_innodb.test
	new file:   mysql-test/suite/json/t/json_functions_innodb.test
	new file:   mysql-test/suite/json/t/json_functions_ndb.test
	new file:   mysql-test/suite/json/t/json_gcol_innodb.test
	new file:   mysql-test/suite/json/t/json_group_concat_innodb.test
	new file:   mysql-test/suite/json/t/json_group_concat_ndb.test
	new file:   mysql-test/suite/json/t/json_innodb.test
	new file:   mysql-test/suite/json/t/json_insert_innodb.test
	new file:   mysql-test/suite/json/t/json_insert_ndb.test
	new file:   mysql-test/suite/json/t/json_no_table.test