[RFC] Proposal to add edk2-apps repository

["Kinney, Michael D" <michael.d.kinney@intel.com>]

Hello,

I would like to propose the creation of a new
repository called edk2-apps.  This repository
would initially be used to host the following
packages from the edk2 repository:

* AppPkg
* StdLib
* StdLibPrivateInternalFiles

These 3 packages provide support for the libc along
with applications that depend on libc.  None of the
other packages in the edk2 repository use these
packages, so these 3 package can be safely moved
without any impacts to platform firmware builds.
Build configurations that do use libc features can
clone the edk2-apps repository and add it to
PACKAGES_PATH.

The history of these 3 packages would be preserved
when importing the content into edk2-apps.  After
The import is verified, these 3 packages would be
deleted from the edk2 repository.

This proposal helps reduce the size of the edk2
repository and focuses edk2 repository on packages
used to provide UEFI/PI conformant firmware.

If there are no concerns with this proposal, I will
enter a Tianocore BZs for the two steps.

Best regards,

Mike