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/driver/colorgradient.cpp

@@ -185,11 +185,15 @@ fb_pixel_t* CColorGradient::gradientColorToColor(fb_pixel_t start_col,fb_pixel_t
 	int start_box = 0;
 	int end_box = bSize;
 
-	if (mode == gradientDark2Light) {
-		fb_pixel_t temp_col = start_col;
+	fb_pixel_t temp_col = end_col;
+	end_col =  start_col;
+	start_col = temp_col;
+
+	if (mode == gradientDark2Light){
+		temp_col = start_col;
 		start_col = end_col;
 		end_col = temp_col;
-		}
+	}
 
 	uint8_t start_tr = (uint8_t)((start_col & 0xFF000000) >> 24);
 	uint8_t start_r  = (uint8_t)((start_col & 0x00FF0000) >> 16);