Add Composite CDC+HID device option. (#5478)

* Add Composite CDC+HID device option.

- It passes on though HID interface 8 channels received from TX
- Endpoints are reconfigured to support HID interface
- Potentially this can slow down SPI Flash transfer though CDC interface...
- This could be addressed by support for MSC when using SPI Flash (emulating FATFS)

* Different way to handle MIN redefine

make/mcu/STM32F4.mk

@@ -93,12 +93,18 @@ USBMSC_DIR  = $(ROOT)/lib/main/STM32_USB_Device_Library/Class/msc
 USBMSC_SRC  = $(notdir $(wildcard $(USBMSC_DIR)/src/*.c))
 EXCLUDES    = usbd_storage_template.c
 USBMSC_SRC  := $(filter-out ${EXCLUDES}, $(USBMSC_SRC))
-VPATH       := $(VPATH):$(USBOTG_DIR)/src:$(USBCORE_DIR)/src:$(USBCDC_DIR)/src:$(USBMSC_DIR)/src
+USBHID_DIR  = $(ROOT)/lib/main/STM32_USB_Device_Library/Class/hid
+USBHID_SRC  = $(notdir $(wildcard $(USBHID_DIR)/src/*.c))
+USBWRAPPER_DIR  = $(ROOT)/lib/main/STM32_USB_Device_Library/Class/hid_cdc_wrapper
+USBWRAPPER_SRC  = $(notdir $(wildcard $(USBWRAPPER_DIR)/src/*.c))
+VPATH       := $(VPATH):$(USBOTG_DIR)/src:$(USBCORE_DIR)/src:$(USBCDC_DIR)/src:$(USBMSC_DIR)/src:$(USBHID_DIR)/src:$(USBWRAPPER_DIR)/src
 
 DEVICE_STDPERIPH_SRC := $(STDPERIPH_SRC) \
                         $(USBOTG_SRC) \
                         $(USBCORE_SRC) \
                         $(USBCDC_SRC) \
+                        $(USBHID_SRC) \
+                        $(USBWRAPPER_SRC) \
                         $(USBMSC_SRC)
 endif
 
@@ -122,6 +128,8 @@ INCLUDE_DIRS    := $(INCLUDE_DIRS) \
                    $(USBOTG_DIR)/inc \
                    $(USBCORE_DIR)/inc \
                    $(USBCDC_DIR)/inc \
+                   $(USBHID_DIR)/inc \
+                   $(USBWRAPPER_DIR)/inc \
                    $(USBMSC_DIR)/inc \
                    $(USBFS_DIR)/inc \
                    $(CMSIS_DIR)/Core/Include \