adds launcher flags to flare

[James-Pickett]

summary.log:

✅	Launcher Flags: launcher flags exists and are parsable

launcherFlags.log:

flags file path: /private/etc/kolide-k2/launcher.flags
flags file is 308 bytes, and was last modified at 2023-07-10 13:31:30.430633404 -0700 PDT

launcher.flags contents:

with_initial_runner
autoupdate
hostname k2device-preprod.kolide.com
root_directory /var/kolide-k2/k2device-preprod.kolide.com
osqueryd_path /usr/local/kolide-k2/bin/osqueryd
enroll_secret_path /etc/kolide-k2/secret
update_channel nightly
transport jsonrpc
autoupdate_interval 1m
autoupdater_initial_delay 1s

[directionless]

I think it's worth using our options parser

[RebeccaMahany]

LGTM!

[directionless]

I didn't look too hard, but it seems fine. I assume it still works