Externals: add hidapi

Current master (d17db57b9d4354752e0af42f5f33007a42ef2906) because
Android support was added after the current release (0.8.0-rc1).

Externals/hidapi/windows/ddk_build/.gitignore

@@ -0,0 +1,2 @@
+*.log
+obj*_*_*

Externals/hidapi/windows/ddk_build/hidapi.def

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+LIBRARY   hidapi
+EXPORTS
+   hid_open    @1
+   hid_write   @2
+   hid_read    @3
+   hid_close   @4
+   hid_get_product_string @5
+   hid_get_manufacturer_string @6
+   hid_get_serial_number_string @7
+   hid_get_indexed_string @8
+   hid_error @9
+   hid_set_nonblocking @10
+   hid_enumerate @11
+   hid_open_path @12
+   hid_send_feature_report @13
+   hid_get_feature_report @14
+   

Externals/hidapi/windows/ddk_build/makefile

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+#############################################################################
+#
+#               Copyright (C) Microsoft Corporation 1995, 1996
+#       All Rights Reserved.
+#
+#       MAKEFILE for HID directory
+#
+#############################################################################
+
+!IFDEF WIN95_BUILD
+
+ROOT=..\..\..\..
+
+VERSIONLIST = debug retail
+IS_32 = TRUE
+IS_SDK = TRUE
+IS_PRIVATE = TRUE
+IS_SDK = TRUE
+IS_DDK = TRUE
+WIN32 = TRUE
+COMMONMKFILE = hidapi.mk
+
+!include $(ROOT)\dev\master.mk
+
+
+!ELSE
+
+#
+# DO NOT EDIT THIS FILE!!!  Edit .\sources. if you want to add a new source
+# file to this component.  This file merely indirects to the real make file
+# that is shared by all the driver components of the Windows NT DDK
+#
+
+!IF DEFINED(_NT_TARGET_VERSION)
+!	IF $(_NT_TARGET_VERSION)>=0x501
+!		INCLUDE $(NTMAKEENV)\makefile.def
+!	ELSE
+#               Only warn once per directory
+!               INCLUDE $(NTMAKEENV)\makefile.plt
+!               IF "$(BUILD_PASS)"=="PASS1"
+!		    message BUILDMSG: Warning : The sample "$(MAKEDIR)" is not valid for the current OS target.
+!               ENDIF
+!	ENDIF
+!ELSE
+!	INCLUDE $(NTMAKEENV)\makefile.def
+!ENDIF
+
+!ENDIF
+

Externals/hidapi/windows/ddk_build/sources

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+TARGETNAME=hidapi
+TARGETTYPE=DYNLINK
+UMTYPE=console
+UMENTRY=main
+
+MSC_WARNING_LEVEL=/W3 /WX
+
+TARGETLIBS=$(SDK_LIB_PATH)\hid.lib \
+           $(SDK_LIB_PATH)\setupapi.lib \
+           $(SDK_LIB_PATH)\kernel32.lib \
+           $(SDK_LIB_PATH)\comdlg32.lib
+
+USE_MSVCRT=1
+
+INCLUDES= ..\..\hidapi
+SOURCES= ..\hid.c \
+
+
+TARGET_DESTINATION=retail
+
+MUI=0
+MUI_COMMENT="HID Interface DLL"
+