main/fuse: upgrade to 3.1.0

[tmpfile]

No description provided.

[fcolista]

This upgrade breaks ABI, there are those packages that must be rebuilt with the new version:
(sshfs rebuild is already pushed in commit #1900 )

• main:
  avfs
  encfs
  gvfs
  kamailio
  py-fuse
  truecrypt
  unionfs-fuse

• community:
  archivemount
  bmon
  fuse-exfat
  luufs
  lxcfs
  obnam
  tilda

• testing:
  geth
  i3status
  lizardfs
  mergerfs
  mhddfs

I'll bump the pkgrel for those other packages.

[fcolista]

NACK.
fuse3 ABI breakage causes encfs to not work, and it was the second package I've tested while bumping the pkgrel...so I don't know about the others...so this patch cannot be applied as-is.
A possibile workaround might be rename fuse to fuse2, and use fuse with new version (this is what Arch does. Void is sticking to 2.9.7, Gentoo, Suse and Fedora has two different packages as well).

[nmeum]

fuse 3 should be added as a separate package so we can still compile packages still using the old fuse 2 API. I would suggest adding it as testing/fuse3 and leaving main/fuse as it is.

[nmeum]

I added a new aport testing/fuse3 with your changes. If you take over maintainer ship for this aport and upgrade it to 3.2.0 we can move it to main and merge #1900.