[-] StbMainApp: Add interface_drawSelectionRectangle() function
[-] StbMainApp: Move interface_displayClock() to interface_listMenuDisplay()
[-] StbMainApp: Refactor intarface_displayMenu()

Signed-off-by: Anton Sergeev <Anton.Sergeev@elecard.ru>

Conflicts:
	StbMainApp/src/interface.c
	StbMainApp/src/teletext.h
[-] StbMainApp: Fix drawing menu entries with two lines
[-] StbMainApp: Fix drawing edit entries
[-] StbMainApp: Fix file attributes