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_scrollbar.cpp

@@ -62,9 +62,9 @@ using namespace std;
 CComponentsScrollBar::CComponentsScrollBar(	const int &x_pos, const int &y_pos, const int &w, const int &h,
 						const int& count,
 						CComponentsForm* parent,
-						bool has_shadow,
+						int shadow_mode,
 						fb_pixel_t color_frame, fb_pixel_t color_body, fb_pixel_t color_shadow)
-						:CComponentsFrmChain(x_pos, y_pos, w, h, NULL, CC_DIR_Y, parent, has_shadow, color_frame, color_body, color_shadow)
+						:CComponentsFrmChain(x_pos, y_pos, w, h, NULL, CC_DIR_Y, parent, shadow_mode, color_frame, color_body, color_shadow)
 {
 	initVarSbForm(count);
 }
@@ -165,12 +165,12 @@ void CComponentsScrollBar::initSegments()
 		//set color for marked id
 		if (sb_mark_id == id){
 			item->setColorBody(COL_MENUCONTENTSELECTED_PLUS_0);
-			item->enableColBodyGradient(true);
+			item->enableColBodyGradient(CC_COLGRAD_COL_A_2_COL_B);
 			item->setColBodyGradient(CColorGradient::gradientDark2Light2Dark, CFrameBuffer::gradientHorizontal);
 		}
 		else{
 			item->setColorBody(COL_MENUCONTENT_PLUS_1);
-			item->enableColBodyGradient(false);
+			item->disableColBodyGradient();
 		}
 	}