Update tcar_setModuleArguments to use TCAR_MODULE_ARGUMENT instead of ${@}.
    
    - Previously, tcar_setModuleArguments was using ${@} to verify whether
      to use ${PWD} as value to TCAR_MODULE_ARGUMENT variable. Since no
      parameter is been passed to tcar_setModuleArguments, ${@} is always
      empty making TCAR_MODULE_ARGUMENT to always have ${PWD} as value.
      This prevents tcar_setModuleArguments from doing any option parsing
      through getopt. In order for tcar_setModuleArguments to parse
      options passed in the command line, update tcar_setModuleArguments
      to use TCAR_MODULE_ARGUMENT instead of ${@} variable when verifying
      whether or not to use ${PWD} as as value of TCAR_MODULE_ARGUMENT.