Missing mapping to four obscure sans serif variants

[Enivex]

The letterlike symbols block contains the following sans serif variants

Inverted: G, L, Y
Reversed: L

They should be mapped to by their corresponding non-sans serif symbols.

[Enivex]

Turns out the inverted/turned L is the only one of these that have a non-sans serif version. So no mapping required except for that one...