Always add a manifest resource to perl.exe to specify the <trustInfo>

Always add a manifest resource to perl.exe to specify the <trustInfo>
settings for Windows Vista and later.  Without this setting Windows
will treat perl.exe as a legacy application and apply various
heuristics like redirecting access to protected file system areas
(like the "Program Files" folder) to the users "VirtualStore"
instead of generating a proper "permission denied" error.

For VC8 and VC9 this manifest setting is automatically generated by
the compiler/linker (together with the binding information for their
respective runtime libraries); for all other compilers we need to
embed the manifest resource explicitly in the external resource file.

This change also requests the Microsoft Common-Controls version 6.0
(themed controls introduced in Windows XP) via the dependency list
in the assembly manifest.  For VC8 and VC9 this is specified using the
/manifestdependency linker commandline option instead.