[Fuego] merge create/delete job scripts into ftc

[Daniel Sangorrin]

Hi,

The following 2 patches merge the create/delete job
scripts from fuego-ro/scripts into ftc.

[PATCH] ftc: add subcommands add-jobs and rm-jobs
[PATCH] fuego: remove create/delete job scripts

The new add-jobs subcommand is not using python-jenkins
yet, and it's still based on a testplan (if not testplan
is provided it will try to use testplan_default). In
the future I will add an option to specify the spec
instead of a testplan for the user to be able to add
tests one by one.

The rm-jobs subcommand has a bit more functionality that
the original fuego-delete-jobs script. Now you can select
which jobs to delete more specifically by using wildcards
such as docker.testplan_*.Benchmark.*stress.

Thanks,
Daniel