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_tvpic.cpp

@@ -42,7 +42,7 @@ using namespace std;
 //sub class CComponentsPIP from CComponentsItem
 CComponentsPIP::CComponentsPIP(	const int x_pos, const int y_pos, const int percent,
 				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
@@ -59,7 +59,7 @@ CComponentsPIP::CComponentsPIP(	const int x_pos, const int y_pos, const int perc
 	y 		= y_pos;
 	width 		= percent*screen_w/100;
 	height	 	= percent*screen_h/100;
-	shadow		= has_shadow;
+	shadow		= shadow_mode;
 	shadow_w	= SHADOW_OFFSET;
 	col_frame 	= color_frame;
 	col_body	= color_body;
@@ -73,7 +73,7 @@ CComponentsPIP::CComponentsPIP(	const int x_pos, const int y_pos, const int perc
 CComponentsPIP::~CComponentsPIP()
 {
  	hide();
- 	videoDecoder->Pig(-1, -1, -1, -1);
+//  	videoDecoder->Pig(-1, -1, -1, -1);
 }
 
 void CComponentsPIP::paint(bool do_save_bg)
@@ -111,8 +111,8 @@ void CComponentsPIP::paint(bool do_save_bg)
 }
 
 
-void CComponentsPIP::hide(bool no_restore)
+void CComponentsPIP::hide()
 {
 	videoDecoder->Pig(-1, -1, -1, -1);
-	hideCCItem(no_restore);
+	CComponents::hide();
 }