Added new Pipe_IsFrozen() macro to determine if the currently selected pipe is frozen.

Added new USB_GetHIDReportSize() function to the HID report parser to retrieve the size of a given report by its ID.

More additions to the unfinished HID Host Class Driver.

Demos/Device/ClassDriver/Keyboard/Descriptors.c

@@ -140,7 +140,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 				
 			.Class                  = 0x03,
 			.SubClass               = 0x01,
-			.Protocol               = 0x01,
+			.Protocol               = HID_BOOT_KEYBOARD_PROTOCOL,
 				
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},