* [KERNEL32] Add stub implementation for GetCurrentPackageId() function
This Windows 8+ function is called by WiX bundles (EXE-based installers) upon exit, if the export is present. If it is a stub in the spec, they will crash, even if they are coded to be compatible with Windows XP/ReactOS.
Also add GetCurrentPackageId() forwarder to apiset.
There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
Instead of loading systemcompatible.manifest as the implicit activation context, load forwardcompatible.manifest
Add a new assembly containing all apisets called ReactOS.Apisets and make it a dependency to forwardcompatible.manifest