Added GDS file for custom alternative to the fill 8 cell in the HVL
library, with diffusion layers to raise the percentage of FOM fill.

sky130/custom/sky130_fd_sc_hvl/gds/sky130_ef_sc_hvl__fill_8.gds

diff --git a/sky130/custom/sky130_fd_sc_hvl/gds/sky130_ef_sc_hvl__fill_8.gds b/sky130/custom/sky130_fd_sc_hvl/gds/sky130_ef_sc_hvl__fill_8.gds
new file mode 100644
index 0000000..b4be6cb
--- /dev/null
+++ b/sky130/custom/sky130_fd_sc_hvl/gds/sky130_ef_sc_hvl__fill_8.gds
Binary files differ