Set some extra_params like access_log_pipe failed

[Guillaume]

https://github.com/openstack/puppet-horizon/blob/master/manifests/wsgi/apache.pp#L242-L253
In wsgi/apache.pp $extra_params has a lower priority than the 3rd parameter in the merge(), that implies we can't overwrite any parameters we want and incompatible option like access_log_pipe cannot be set because access_log_file cannot be set to undef.

[Guillaume (vatlas)]

I'd like to contribute to the repository, but I don't really know how I can do that so here is my patch.

[Takashi Kajinami (kajinamit)]

Recently we merged a few patches to make some hard-coded items configurable.
 https://review.opendev.org/c/openstack/puppet-horizon/+/841070
 https://review.opendev.org/c/openstack/puppet-horizon/+/841060

# Unfortunately I added a wrong bug id so these are not linked to this bug ...

I believe these two patches would cover most use cases (there are still some
hard-coded items but these are distro specific which we don't expect customization
about or are configurable by different parameters.