Release Germinal 6

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
use GdkRGBA (breaks vte)

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
port to vte 2.91 api (WIP)

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>