fltk: upgrade from version 1.1.10 to 1.3.3

- backport patch from trunk to fix build failure with jpeg-9 library
- add PACKAGECONFIG for opengl, xinerama, xfixes, xcursor to fix [build-deps] qa warnings
- rebase patches against the new version and drop the useless patches
- cleanup the host buildpaths from fltk-config

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>