Add Gandalf’s Windows 10PE x64 Redstone 7 Spring 2022 Edition to E2B

Gandalf's WinPE is another popular Windows 10 x64 PE. It contains lots of programs and utilities but it is rather a heavyweight. The boot.wim file alone is 2GB and to run it you will need a 64-bit CPU and 4-5GB of RAM (depending on how you boot the ISO).

The boot.wim can take many minutes to load on some systems (depends on the BIOS USB 2/3 driver speed).

The download file is 'donationware' in that you must donate in order to be given a download URL, although if you Google enough, you can find a torrent link for a 5GB .rar download which can be unpacked to give a 10.8GB ISO file which supports UEFI64 and Legacy 64-bit booting.

I changed the filename to:
GandalfsWin10PEx64RS7-20H1_.isomap64.agfmisomap64.ISO

so that it would boot under E2B and agFM without prompting for options or showing a secondary menu.