include: Import IAccessible2 headers.

include/Makefile.in

@@ -812,6 +812,7 @@ SOURCES = \
 	wine/debug.h \
 	wine/exception.h \
 	wine/fil_data.idl \
+	wine/iaccessible2.idl \
 	wine/itss.idl \
 	wine/orpc.idl \
 	wine/svcctl.idl \

tools/make_makefiles

@@ -41,6 +41,7 @@ my %modules16 =
 my %exported_wine_headers = (
     "wine/debug.h" => 1,
     "wine/exception.h" => 1,
+    "wine/iaccessible2.idl" => 1,
     "wine/itss.idl" => 1,
     "wine/svcctl.idl" => 1,
 );