moved backend into backend directory

backend/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "adv_db"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+actix-cors = "0.6.4"
+actix-identity = "0.5.2"
+actix-session = { version = "0.7.2", features = ["cookie-session"] }
+actix-web = "4.3.1"
+chrono = "0.4.24"
+env_logger = "0.10.0"
+log = "0.4.17"
+oracle = "0.5.7"
+rand = "0.8.5"
+serde = { version = "1.0.160", features = ["derive"] }
+serde_json = "1.0.96"
+sha2 = "0.10.6"