Fixed to call patch executable found by cmake instead of hard coded exe that is expected to be found from path.
Fixed libclang link list to be just libnames, which are then given to POCL_PRIVATE_LINK_LIST
Removed duplicate link flags and fixed LLVM_SYSLIBS to be linked with target_link_libraries() which works also with windows build.
Fixed compiling examples c++ compiler.
Added hardcoded target type for windows.

MicrosoftCXXMangler does not support yet mangling extended vector types.