Refactor LPK initialization

Currently LPK initialization (LPK_ApplyMirroring) is done during process attach.

This can be problematic.

See https://github.com/reactos/reactos/pull/8493

peterooch (comment):

After seeing all the bugs, maybe a better idea is to move the mirroring check / apply to be called from `GdiInitializeLanguagePack` and then `LpkInitialize` (via dynamic load)? (GdiInitializeLanguagePack -> LpkInitialize -> LPK_ApplyMirroring) Then this would more explicit than doing it implied via DLL attach.

This is how its done in win2k3 gdi + lpk implementation, the mirroring check itself also uses ntdll APIs and not the version APIs I guess for the same reasons stated in PR.