media-video/srtrelay: add 1.2.0
This MR prepares the media-video/srtrelay live ebuild so it can be copied to create versioned ebuilds and does so for the version 1.2.0. This also means that the ebuild is migrated from go-module.eclass to go-module-fem.eclass, facilitating FeM's vendor tarball pipeline.
Edited by Adrian Schollmeyer