CRISM helper scripts

Support routines for CRISM are available:

DaCHS-for-VESPA (former repository name)

Most of the content of the previous repository version has been moved to other places.

The examples of service descriptors (q.rd) are now accessible from:
- https://voparis-gitlab.obspm.fr/vespa/dachs/services
Docker container installation is now available from:
- https://github.com/gavodachs/docker-dachs
- https://gitlab.obspm.fr/phamy/voparis-tap-planeto (preliminary, in French, to be consolidated)
The "q.rd generator" script is not maintained anymore.
The EPN-TAP DaCHS mixin script is maintained here:
- https://voparis-gitlab.obspm.fr/vespa/ivoa-standards/epn-tap/dachs-mixin