add -Zshare-generics=off for spirv-builder to make it compile on windows

Author: Firestar99

ash-graphics/Cargo.toml.liquid

@@ -58,7 +58,6 @@ codegen-units = 256
 [profile.dev]
 # HACK(eddyb) fewer inter-crate exports/imports (not just inter-CGU), but sadly
 # not configurable w/o breaking `Cargo.toml` parsing from non-nightly Cargo.
-#
-# rustflags = ["-Zshare-generics=off"]
+rustflags = ["-Zshare-generics=off"]
 codegen-units = 1
 {% endif -%}