Move API into it's own crate

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "schema"]
-	path = schema
+	path = api/schema
 	url = https://gitlab.com/fabinfra/fabaccess/fabaccess-api
 	branch = main

Cargo.toml

@@ -87,4 +87,4 @@ tempfile = "3.2"
 bincode = "1.3"
 
 [workspace]
-members = ["modules/*"]
+members = ["modules/*", "api"]

api/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "api"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

api/src/lib.rs

@@ -0,0 +1,8 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        let result = 2 + 2;
+        assert_eq!(result, 4);
+    }
+}