Init env_logger in snapshots tests

For debugging. Maybe there's a way to do it for all tests,
not sure...

Cargo.toml

@@ -49,6 +49,7 @@ ron = "0.6"
 serde = { version = "1.0", features = ["derive"] }
 spirv = { package = "spirv_headers", version = "1.5", features = ["deserialize"] }
 rspirv = "0.7"
+env_logger = "0.8"
 
 [workspace]
 members = [".", "cli"]

tests/snapshots.rs

@@ -450,6 +450,8 @@ fn convert_spv_pointer_access() {
 #[allow(unused_variables)]
 #[test]
 fn convert_glsl_folder() {
+    env_logger::init();
+
     let root = env!("CARGO_MANIFEST_DIR");
 
     for entry in std::fs::read_dir(format!("{}/{}/glsl", root, BASE_DIR_IN)).unwrap() {