Service provider "freebsd" not flaggable

Describe the Bug

Obviously, on FreeBSD, it's possible to provide flags for services, for example:

# cat /etc/rc.conf.d/nfsuserd
nfsuserd_enable="YES"
nfsuserd_flags="-domain example.com"

but the service provider doesn't have the "flaggable" feature.

Expected Behavior

The service provider "freebsd" should manage service flags.

Steps to Reproduce

Steps to reproduce the behavior:

1. Execute puppet resource service nfsuserd ensure=running enable=true flags="-domain example.org"
2. Verify that nfsuserd_flags still shows -domain example.**com**

Environment

• Version: 8.10.0
• Platform: FreeBSD 14.3