created db crate

Cargo.toml

@@ -7,3 +7,4 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+db = { path = "db" }

db/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "db"
+version = "0.1.0"
+authors = ["Jon Janzen <jon@endofeternity.ca>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

db/src/lib.rs

@@ -0,0 +1,26 @@
+struct DBHeader {
+    magic: u8,
+    major_version: u8, // actually u4 in data
+    minor_version: u8, // actually u4 in data 
+    reserved: u16,
+    record_count: u32,
+}
+
+struct RecordHeader {
+    field_count: u8,
+    length: u8,
+    crc: u16,
+}
+
+struct Field {
+    field_type: u8,
+    value: String,
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}