rdp-backend.so: OpenGL hardware acceleration

Rebased and added the meson bits (Harish Krupo)
Set output_render_flipped to true (Harish Krupo)

Signed-off-by: Harish Krupo <harishkrupo@gmail.com>
Reviewed-by: David Fort <contact@hardening-consulting.com>
2 jobs for rdp_gl in 1 minute and 10 seconds
latest
Status Job ID Name Coverage
  Container Prep
passed #250015
container_prep

00:00:28

 
  Build
passed #250016
build-native-meson

00:00:41