Fixed icon view event naming

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
Added dialogs module and message box implementation

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
Added emergency message box function that uses platform functions

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>