Marius Vlad authored Nov 11, 2024 and Daniel Stone committed Nov 25, 2024

As weston_windowed_output_get_api needs ARRAY_LENGTH() move helpers to a
libweston/ so other users can re-use that instead of re-defining these
all over. Easier for other front-ends to make use of them.

With this change windowed-output-api.h also includes the helpers header.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>