Use SVG-based toolbar bitmaps in webview sample

In webview sample toolbar use wxBitmapBundles created from SVG files
instead of XPM bitmaps, as this results in much better appearance in
high DPI.

Closes #2642.

samples/webview/makefile.gcc

@@ -219,7 +219,7 @@ $(OBJS):
 
 ### Targets: ###
 
-all: $(OBJS)\webview.exe
+all: $(OBJS)\webview.exe data
 
 clean: 
 	-if exist $(OBJS)\*.o del $(OBJS)\*.o
@@ -232,13 +232,17 @@ $(OBJS)\webview.exe: $(WEBVIEW_OBJECTS) $(OBJS)\webview_sample_rc.o
 	$(CXX) -o $@ @$@.rsp  $(__DEBUGINFO) $(__THREADSFLAG) -L$(LIBDIRNAME)  -Wl,--subsystem,windows -mwindows $(____CAIRO_LIBDIR_FILENAMES_p) $(LDFLAGS)  $(__WXLIB_WEBVIEW_p)  $(__WXLIB_STC_p) -limm32 $(__WXLIB_CORE_p)  $(__WXLIB_BASE_p)  -lwxscintilla$(WXDEBUGFLAG) $(__WXLIB_MONO_p) $(__LIB_SCINTILLA_IF_MONO_p) $(__LIB_TIFF_p) $(__LIB_JPEG_p) $(__LIB_PNG_p)   -lwxzlib$(WXDEBUGFLAG) -lwxregex$(WXUNICODEFLAG)$(WXDEBUGFLAG) -lwxexpat$(WXDEBUGFLAG) $(EXTRALIBS_FOR_BASE) $(__CAIRO_LIB_p) -lkernel32 -luser32 -lgdi32 -lcomdlg32 -lwinspool -lwinmm -lshell32 -lshlwapi -lcomctl32 -lole32 -loleaut32 -luuid -lrpcrt4 -ladvapi32 -lversion -lws2_32 -lwininet -loleacc -luxtheme
 	@-del $@.rsp
 
+data: 
+	if not exist $(OBJS) mkdir $(OBJS)
+	for %%f in (webview_back.svg webview_forward.svg webview_refresh.svg webview_stop.svg wxlogo.svg) do if not exist $(OBJS)\%%f copy .\%%f $(OBJS)
+
 $(OBJS)\webview_sample_rc.o: ./../../samples/sample.rc
 	$(WINDRES) -i$< -o$@    --define __WXMSW__ $(__WXUNIV_DEFINE_p_1) $(__DEBUG_DEFINE_p_1) $(__NDEBUG_DEFINE_p_1) $(__EXCEPTIONS_DEFINE_p_1) $(__RTTI_DEFINE_p_1) $(__THREAD_DEFINE_p_1) $(__UNICODE_DEFINE_p_1) --include-dir $(SETUPHDIR) --include-dir ./../../include $(__CAIRO_INCLUDEDIR_p) --include-dir . $(__DLLFLAG_p_1) --define wxUSE_DPI_AWARE_MANIFEST=$(USE_DPI_AWARE_MANIFEST) --include-dir ./../../samples --define NOPCH
 
 $(OBJS)\webview_webview.o: ./webview.cpp
 	$(CXX) -c -o $@ $(WEBVIEW_CXXFLAGS) $(CPPDEPS) $<
 
-.PHONY: all clean
+.PHONY: all clean data
 
 
 SHELL := $(COMSPEC)