Add menu to open pwatcher on active project

dotfiles/config/bmo/menu.ini

     selector_args = --split ' ' --split-field 1
     consumer = xargs -r task context
 
+[menu.def.projects]
+    generator = projects_now
+    selector_args = -- -p 'pwatcher for:'
+    consumer = pwatcher -
+
 [menu.def.windows]
     generator = i3-lswin
     consumer = i3-focuswin