Fixes #31743 - Template macro install_packages (#8298)

For package installation on supported OS families: Red Hat, Debian & Suse.
In host registration users can now install packages
by setting the `host_packages` parameter.

Also if a snippet `host_init_config_post` is defined, it gets added to the registration script.

Fixes #32092 - add puppet safe guard

Hides puppetserver and puppet environment behind macros, that can alter
implementation much more easily and even be patched from plugin.

Fixes #31070 - update the macro documentation (#8409)

Fixes #31750 - :foreman_server_ca_cert macro & not existing file (#8294)

Fixes #31064 - sequence helper macro (#8072)

fixes #31633 - Introducing format_time macro

There is no way how to show Unix timestamp in pretty way in reports. This macro solves the problem.

refs #29862 - improves report macros docs

Fixes #30949 - Safe mode preview

Fixes #30998 - Global Registration - Secure connection (#8047)

The global registration endpoint template now deployes the CA
certificate of the Foreman to a temp file. This certificate is then used
by subsequent curl calls to ensure the Foreman server authenticity. The...

Fixes #31016 - refresh registries after plugin testing (#8055)

Fixes #31016 - refresh registries after plugin testing

Introduce mechanisms to refresh the plugin registries.
We pollute these during plugin mechanisms testing and it never gets cleaned up.
This makes sure we clean mocks and stubs from the registries.