manager: in editor mode, test func must check if Eo exists for object
database: add types of Ops
gui_widget: add wdg_prop_del() func

Signed-off-by: Yakov Goldberg <yakov.g@samsung.com>
typo

Signed-off-by: Yakov Goldberg <yakov.g@samsung.com>
propview: supporting MULTI_PROPERTY flag

  - MULTI widgets will be changed on activated
  - add delete prop button, for MULTI properties

Signed-off-by: Yakov Goldberg <yakov.g@samsung.com>
temp button

Signed-off-by: Yakov Goldberg <yakov.g@samsung.com>