TEMPORAY COMMITING, CAN NOT BUILD!

- add new project udnz.com.ShellEx.TaggableShell.Handlers to implement "Property sheet handler"
- remove the empty project udnz.com.ShellEx.TaggableShell.Core
Merge branch 'master' of https://github.com/uonun/TaggableShell

Conflicts:
	C++/udnz.com.ShellEx.TaggableShell.Handlers/TaggableShell.Handlers.cpp
	C++/udnz.com.ShellEx.TaggableShell.Handlers/udnz.com.ShellEx.TaggableShell.Handlers.vcxproj
	C++/udnz.com.ShellEx.TaggableShell.Handlers/udnz.com.ShellEx.TaggableShell.Handlers.vcxproj.filters