Describe the bug
I noticed when looking at #1583 that the shadows for coil blocks look wrong

For other blocks the bright part is
front: top left
top: front right

For coil blocks the bright part is kind of opposite but not quite
front: bottom
top: back

I haven't checked other faces.

Versions
Forge: 14.23.5.2487
GTCE: 1.14.0

Expected behavior
The shadows should look consistent.

I don't know what the correct fix should be.
Change the textures?
Apply some uv transformations in blockstates/wire_coil.json?

Screenshots
Some casings and tile entities showing the issue

Comparison with apatite from forestry