refactor: rename to gpcommon

gpcommon/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "gpcommon"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+tokio = { version = "1.14", features = ["full"] }
+tokio-util = "0.7"
+thiserror = "1.0"
+serde = { version = "1.0", features = ["derive"] }
+bytes = "1.0"
+serde_json = "1.0"
+async-trait = "0.1"
+ring = "0.16"
+data-encoding = "2.3"
+log = "0.4"
+
+[build-dependencies]
+cc = "1.0"