components: rework classes

- outsourced some classes cc_item.cpp/h, cc_draw.cpp/h
- added extra methodes for simple use of some basic components extra.cpp/h
- rework clock handling: use timer class, reworked members for
  enable/disable clock with external timer events,
  tryed to fix some display issues related with infoclock and
  time osd clock in moviebrowser, channellist, menuus
- reworked hide/kill handling, removed parameter for hide(), try to use
  cached backgrounds for other constallations, paint cache, image cache (all beta)
- reworked shadow/frame handling, add shadow modes for left/right
  arrangement, TODO: repaint for existant instances required
- reworked color gradient assignment (beta)

... Note: I had a data crash in my local git tree
and i tryed to restore my historie, but most was lost. Therefore here
the commit is large

src/gui/components/cc_frm_footer.h

@@ -62,7 +62,7 @@ class CComponentsFooter : public CComponentsHeader
 		void initVarFooter(	const int& x_pos, const int& y_pos, const int& w, const int& h = 0,
 					const int& buttons = 0,
 					CComponentsForm *parent = NULL,
-					bool has_shadow = CC_SHADOW_OFF,
+					int shadow_mode = CC_SHADOW_OFF,
 					fb_pixel_t color_frame = COL_MENUCONTENT_PLUS_6,
 					fb_pixel_t color_body = COL_INFOBAR_SHADOW_PLUS_1,
 					fb_pixel_t color_shadow = COL_MENUCONTENTDARK_PLUS_0);
@@ -83,7 +83,7 @@ class CComponentsFooter : public CComponentsHeader
 		CComponentsFooter(	const int& x_pos, const int& y_pos, const int& w, const int& h = 0,
 					const int& buttons = 0,
 					CComponentsForm *parent = NULL,
-					bool has_shadow = CC_SHADOW_OFF,
+					int shadow_mode = CC_SHADOW_OFF,
 					fb_pixel_t color_frame = COL_MENUCONTENT_PLUS_6,
 					fb_pixel_t color_body = COL_INFOBAR_SHADOW_PLUS_1,
 					fb_pixel_t color_shadow = COL_MENUCONTENTDARK_PLUS_0);