cqapi: Fixed infinitive loop during parsing

There is a race condition using -P parse option to end with infinitive loop
when some unknown specified parameters without argument are passed. OPTIND
variable cannot be effectively increased by getopts and next call of getopts
decrease OPTIND value and this causes infinitive loop.

Additional condition is added to detect that OPTIND cannot be increased
next time (it's constant) so all parameters has been alread parsed.
CQM-41 cqwfl output format improvement

By default human-readable format is returned by cqwfl tool.
To see original JSON response -j option should be passed.
To parse response (tab-delimited fields) -m option should be passed.

-m and default behavior use seq tool which is not portable to i.e.
BSD systems.