playerblips: add onSettingChange handler to update settings rather than require resource restart

[jlillis]

Is your feature request related to a problem? Please describe. Currently, admins must remember to restart playerblips after changing settings via the admin panel to have them take effect.

Describe the solution you'd like Listen for onSettingChange to update settings in real time rather than requiring a resource restart.

Describe alternatives you've considered N/A

Additional context N/A