[FR] initramfs loading

[Flamitsu]

Is your feature request related to a problem? Please describe.
The bootloader needs to load the initramfs by itself. When booting up a system with a initramfs and the vmlinuz binary (separated) the handover works, but it crashes because of the lack of initramfs

Describe the solution you'd like
Implement LoadFile2Protocol & the interface for the Linux kernel to load the initramfs

[Flamitsu]

LoadFileProtocol is already implemented (LoadFile2Protocol is just like a pointer to the interface of LoadFileProtocol struct). Just need to keep going to implement the public interface. This also will be need to be worked towards making the UEFI modules