Fix an export generator script, modify some property sheets, add resouce file.
Add WinLauncher projects to solution.

* JavaScriptCore.vcxproj/JavaScriptCoreExportGenerator/JavaScriptCoreExportGeneratorDebug.props:
* JavaScriptCore.vcxproj/JavaScriptCoreExportGenerator/JavaScriptCoreExportGeneratorPostBuild.cmd:
* JavaScriptCore.vcxproj/JavaScriptCoreExportGenerator/JavaScriptCoreExportGeneratorRelease.props:
* JavaScriptCore.vcxproj/resource.h: Added.
* WebKit.vcxproj/WebKit.sln:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142060 268f45cc-cd09-0410-ab3c-d52691b4dbfc