Move common components to shared lib

rc_core/src/persist/config/mod.rs

@@ -0,0 +1,13 @@
+mod cubes_json;
+pub use cubes_json::CubeConfig;
+
+mod traits;
+pub use traits::{ConfigProvider, CompleteCampaignProvider};
+
+pub type ConfigImpl = CubeConfig;
+
+fn __must_impl<T: ConfigProvider<()>>() {}
+
+fn __test_impl() {
+    __must_impl::<ConfigImpl>();
+}