package/midori: bump to version 9.0

This is a substantial update as the last time the midori version was bumped
was on Fri Apr 29 2016 commit 54bbd88b.

Changes:

package/Config.in: Move midori out of the "X applications" submenu and into
the "Graphic applications" submenu, as it is not dependent on X.

- Drop the two existing patches as they no longer apply.
- 0001-disable-vala-fatal-warnings.patch: new patch. This patch fixes
  errors when building midori in a buildroot source repository that is also
  a git project.

- 0002-add-option-to-specify-path-to-g-ir-compiler.patchL new patch.
  This patch introduces a new option that allows the make system to specify
  a path to the g-ir-compiler, or else the host path's g-ir-compiler is used
  which results in failed builds.

- Change the site to the github repository, as that is where the latest
  releases are published.

- New dependencies: gobject-introspection, json-glib, libarchive, and libpeas.
- gcr is no longer an optional dependency.
- host-python3 is now a mandatory dependency.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>