games/opensonic: Prepare for Allegro 4.4.3, add wrapper script

• struct LOGG in liblogg from Allegro 4.4.3 was made opaque. Opensonic directly manipulates it however. Integrate liblogg from Allegro 4.4.2 to preserve this port.
• Add a wrapper script so that opensonic can find its data files when you run 'opensonic' or start it from your desktop

PR: 235478
Submitted by: tobik
Approved by: devel@stasyan.com (maintainer timeout, 2 weeks)