move policy out of iam

policy/src/format.rs

@@ -0,0 +1,17 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Deserialize, Serialize, Default)]
+pub struct Format {
+    pub version: i32,
+}
+
+// impl Format {
+//     pub const PATH: &str = "config/iam/config/format.json";
+//     pub const DEFAULT_VERSION: i32 = 1;
+
+//     pub fn new() -> Self {
+//         Self {
+//             version: Self::DEFAULT_VERSION,
+//         }
+//     }
+// }