Update audio/sayonara to 0.9.3 and take maintainership

[adridg]

Summary

Update audio/sayonara to 0.9.3 and take maintainership; adjust to
CMake 3.9.

Test Plan

Builds, runs, plays music on 10.4 amd64.

[tcberner]

audio/sayonara/Makefile

8

Can't you use DISTVERSIONSUFFIX?

19

Use cmake:outsource if it allows it

23

This is a gnome.mk feature -- likely not needed.

[adridg]

Address comments

[tcberner]

audio/sayonara/Makefile

5

Maybe think about renameing the port to sayonara-player in the future?

[tcberner]

Looks good to me (10@32 and 12@64).