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_item_shapes.cpp

@@ -37,17 +37,17 @@ using namespace std;
 //sub class CComponentsShapeSquare from CComponentsItem
 CComponentsShapeSquare::CComponentsShapeSquare(	const int x_pos, const int y_pos, const int w, const int h,
 						CComponentsForm *parent,
-						bool has_shadow,
+						int shadow_mode,
 						fb_pixel_t color_frame, fb_pixel_t color_body, fb_pixel_t color_shadow)
 {
 	//CComponentsItem
 	cc_item_type 	= CC_ITEMTYPE_SHAPE_SQUARE;
 
-	x 		= x_pos;
-	y 		= y_pos;
-	width 		= w;
-	height	 	= h;
-	shadow		= has_shadow;
+	x 		= x_old = x_pos;
+	y 		= y_old = y_pos;
+	width 		= width_old = w;
+	height	 	= height_old = h;
+	shadow		= shadow_mode;
 	shadow_w	= SHADOW_OFFSET;
 	col_frame 	= color_frame;
 	col_body	= color_body;
@@ -65,7 +65,7 @@ void CComponentsShapeSquare::paint(bool do_save_bg)
 //sub class CComponentsShapeCircle from CComponentsItem
 CComponentsShapeCircle::CComponentsShapeCircle(	int x_pos, int y_pos, int diam,
 						CComponentsForm *parent,
-						bool has_shadow,
+						int shadow_mode,
 						fb_pixel_t color_frame, fb_pixel_t color_body, fb_pixel_t color_shadow)
 {
 	//CComponents, CComponentsItem
@@ -75,7 +75,7 @@ CComponentsShapeCircle::CComponentsShapeCircle(	int x_pos, int y_pos, int diam,
 	x 		= x_pos;
 	y 		= y_pos;
 	//width = height	= d = diam;
-	shadow		= has_shadow;
+	shadow		= shadow_mode;
 	shadow_w	= SHADOW_OFFSET;
 	col_frame 	= color_frame;
 	col_body	= color_body;