Split out parsing stuff as well, and test it

crates/parsing/Cargo.toml

@@ -0,0 +1,19 @@
+# This crate explicitly does not have uefi/uefi-raw dependencies,
+# so that the contents can be unit-testable on non-UEFI target hosts.
+# Do not add uefi or uefi-raw as dependencies.
+[package]
+name = "edera-sprout-parsing"
+description = "Sprout Parsing Utilities (UEFI-free)"
+license.workspace = true
+version.workspace = true
+homepage.workspace = true
+repository.workspace = true
+edition.workspace = true
+
+[dependencies]
+hex.workspace = true
+sha2.workspace = true
+
+[lib]
+name = "edera_sprout_parsing"
+path = "src/lib.rs"