v1.0-beta12

What's Changed

• Starting beta12: change grub menu colors and removed supportraidgroup… by @fbelavenuto in #504
• Little adjusts in buildroot kernel by @fbelavenuto in #505
• tests by @fbelavenuto in #506
• little fixes by @fbelavenuto in #510
• Adding support to some future addons by @fbelavenuto in #513
• Adding kernel sources to docker compiler image by @fbelavenuto in #514
• Little improvement into github actions by @fbelavenuto in #518
• Adding video mode selection in grub. by @fbelavenuto in #519
• Improving docker compiler by @fbelavenuto in #520

Full Changelog: v1.0-beta11a...v1.0-beta12