Introduce new types

src/Tools/cdgen/Cargo.toml

@@ -6,3 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+cdtypes     = {path = "../cdtypes"}
+tool_helper = {path = "../tool_helper"}

src/Tools/cdgen/src/lib.rs

@@ -0,0 +1 @@
+pub mod types;

src/Tools/cdgen/src/types/mod.rs

@@ -0,0 +1,30 @@
+use cdtypes::types::cdstring::DString;
+
+pub struct CDDesc {
+    root: Directory
+}
+
+pub struct PVD {
+
+}
+
+pub struct Directory {
+    name:   DirectoryName,
+    lba:    Option<usize>,
+    length: Option<usize>,
+    data:   Vec<Data>,
+    dirs:   Vec<Directory>
+}
+
+pub struct Data {
+    name: FileName,
+}
+
+pub struct DirectoryName {
+    name: DString<8>,
+}
+
+pub struct FileName {
+    name: DString<8>,
+    ext:  DString<3>
+}