pdksync - (CONT-990) - Adding Community Pull Requests template

Make the `ensure_packages` shim an Internal function and pass scope to
the namespaced version so as to not change the behaviour of where
packages are contained.

When the function was first ported to the new API, it was discussed that
the existing behaviour might not be 'correct', but changing it would be
a breaking change that might have consequences for many users.

In namespacing the function in 9.0.0 we accidentally created a situation
where the namespaced version worked as before, but the non-namespaced
version, (the shim), now behaved differently.

Fixes #1374

Pass calling scope to `stdlib::ensure_packages` from shim

In this change, an optional third parameter is added to the
`deprecation` function.  The default behaviour remains the same, but
when the third parameter is set to `false`, Puppet's `strict` setting is
ignored. This means that even if `strict` is set to `error`, no
exception will be raised when this function is called, and a warning
will be logged instead.

This is a prerequisite for #1373

Previously, when a user had the Puppet setting `strict` set to `error` (which
is the default in Puppet 8), a call to one of stdlib's functions via the
deprecated non-namespaced function would cause a hard failure instead of just
logging a warning and calling the real namespaced function.

In this change, all of our shims have been updated to call `deprecation` with
its new third parameter, (`use_strict_setting`), set to `false`. The
non-namespaced versions will now only ever log warnings informing users to
moved to the namespaced versions. It will not raise exceptions even if `strict`
is set to `error`.

This change will make it much easier for users to migrate to stdlib 9 (and to
upgrade modules that now depend on stdlib 9)

Fixes #1373

Ignore Puppet's `strict` setting when calling function without namespace

Release prep v9.2.0