orc.recipe: Bump to 0.4.31, switch to tarball, add patches for UWP things
commit 983460db:
orc.recipe: Bump to 0.4.31, switch to tarball
We need to use this tarball for the 1.18 branch. We will switch back
to origin/master afterwards.
commit 6ee37dd0:
orc.recipe: Add patches needed for UWP support
These are already merged upstream into origin/master, but we need to
manually patch these to use the 0.4.31 tarball.