Add SpacedStructName trait

The `SpacedStructName` trait provides a textual representation of a
struct. Instead of the common pascal case names used in rust, it is
intended to provide a lowercase space separated name. Words or acronyms
that are capitalized will still be capitalized.

verifier/src/lib.rs

@@ -5,6 +5,8 @@
 #![no_std]
 
 mod report_body;
+mod struct_name;
+
 pub use report_body::{
     AttributesVerifier, ConfigIdVerifier, ConfigSvnVerifier, CpuSvnVerifier,
     ExtendedProductIdVerifier, FamilyIdVerifier, IsvProductIdVerifier, IsvSvnVerifier,

verifier/src/struct_name.rs

@@ -0,0 +1,43 @@
+// Copyright (c) 2023 The MobileCoin Foundation
+
+//! Provides a trait that provides a textual friendly version of a struct name.
+//! The names are all lowercase and use spaces between the words.
+
+use mc_sgx_core_types::{
+    Attributes, ConfigId, ConfigSvn, CpuSvn, ExtendedProductId, FamilyId, IsvProductId, IsvSvn,
+    MiscellaneousSelect, MrEnclave, MrSigner, ReportData,
+};
+
+macro_rules! spaced_struct_name {
+    ($($item:ident, $name:literal;)*) => {$(
+        impl SpacedStructName for $item {
+            fn spaced_struct_name() -> &'static str {
+                $name
+            }
+        }
+    )*}
+}
+
+/// A textual name of a struct to be used in explanatory text.
+///
+/// Instead of the common pascal case names used in rust, a lowercase space
+/// separated name is used. Words or acronyms that are capitalized will still be
+/// capitalized.
+pub trait SpacedStructName {
+    fn spaced_struct_name() -> &'static str;
+}
+
+spaced_struct_name! {
+    Attributes, "attributes";
+    CpuSvn, "CPU SVN";
+    MiscellaneousSelect, "miscellaneous select";
+    ExtendedProductId, "extended product ID";
+    MrEnclave, "MRENCLAVE";
+    MrSigner, "MRSIGNER key hash";
+    ConfigId, "config ID";
+    IsvProductId, "ISV product ID";
+    IsvSvn, "ISV SVN";
+    ConfigSvn, "config SVN";
+    FamilyId, "family ID";
+    ReportData, "report data";
+}