[Exo4.7_BETA-2] Missing files in EFI partition for grub display.

[TriMoon]

Describe the bug

When you reboot after first install, including grub-efi, the grub menu that gets displayed is white on black plain text.
This is caused by missing files in the EFI partition.
To fix this you need the following files/dirs from the iso:

• <ESP>/boot/grub/efi.img
• <ESP>/boot/grub/fonts (recursively)
• <ESP>/boot/grub/theme (recursively)

To Reproduce
Steps to reproduce the behavior:

1. Fresh install on blank HD.

Expected behavior

Same colorfull boot menu as from iso.

Desktop (please complete the following information):

• CPU: GenuineIntel i7-5820K
• GPU: Nividia, GTX 1080 Ti
• BIOS: uEFi
• TYPE: Desktop, ASUS X99-Pro USB3.1