fix: test-data loader - Githubissues

Fix this issue:

root@jgomer2001-apparent-shrimp:/install/community-edition-setup# python3 setup.py -t -x
Please wait while collecting properties...
Loading test data
Process test-data: Loading Test Data
Process test-data: Rendering test templates
Traceback (most recent call last):
  File "setup.py", line 261, in <module>
    testDataLoader.load_test_data()
  File "/install/community-edition-setup/setup_app/test_data_loader.py", line 173, in load_test_data
    base.current_app.RDBMInstaller.create_tables(gluu_schema_json_files)
  File "/install/community-edition-setup/setup_app/installers/rdbm.py", line 155, in create_tables
    alter_table_sql_cmd = 'ALTER TABLE %s{}%s ADD %s{};' % (self.qchar, self.qchar, column_add)
AttributeError: 'RDBMInstaller' object has no attribute 'qchar'

GluuFederation / community-edition-setup

fix: test-data loader #921