This too is a public installed header.
The public headers are moved under a new top-level directory include/ to make
them clearly stand out as special (public API).
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This patch sets up the stage for similarly renaming compositor.h which will
justify this. That patch will be big, so moving timeline-object.h first makes
it easy to see the changes to the build and install directives.
This and all the following moves essentially break the API, so libweston major
is bumped.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>