many many small changes

switched to the new logging here and there
some cleanups
worked  on i2S
base class for files
id3 parsing

ext/lcd/ILI9486p.h

@@ -189,6 +189,15 @@ public:
 		}
 	}
 
+	void fill(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color) {
+		setAddrWindow(x,y,w,h);
+		modeDATA();
+		const uint32_t entries = uint32_t(w) * uint32_t(h);
+		for (uint32_t i = 0; i < entries; ++i) {
+			writeByte(color>>8); writeByte(color>>0);
+		}
+	}
+
 	/** draw 5-6-5 encoded input data */
 	void draw(uint16_t x, uint16_t y, uint16_t w, uint16_t h, const uint16_t* data) {
 		setAddrWindow(x,y,w,h);