terminal: add "Minimize" to context menu
terminal: add "Minimize" to context menu

Terminal is a nice app that support fullscreening. To be able to test
minimizing of a fullscreen app, add an entry to the context menu. That
is the only way to minimize, as window frame is not there when
fullscreen.

Signed-off-by: Pekka Paalanen <0f6ae7001e34c37b02fb2c1c2573ddf8f442136a@collabora.co.uk>

krezovic/weston,mchalupa/weston,krezovic/weston,kwm81/weston,jonnylamb/weston,kwm81/weston,sir-murray/weston,Fantu/compositor-spice,udoprog/weston,xorgy/weston,Tarnyko/weston-xdg_surface_present,Gnurou/weston,Fantu/compositor-spice,Gnurou/weston,eyolfson/weston,sir-murray/weston,giucam/weston,Tarnyko/weston-xdg_surface_present,xorgy/weston,udoprog/weston,eyolfson/weston,jonnylamb/weston,mchalupa/weston,Fantu/compositor-spice,giucam/weston