Add schema generation scripts

.cargo/config.toml

@@ -1,5 +1,6 @@
 [alias]
 wasm = "build --release --lib --target wasm32-unknown-unknown"
+schema = "run --example schema"
 
 [env]
 RUSTFLAGS = "-C link-arg=-s"

contracts/account/examples/schema.rs

@@ -0,0 +1,11 @@
+use account::msg::*;
+use cosmwasm_schema::write_api;
+
+fn main() {
+    write_api! {
+        instantiate: InstantiateMsg,
+        query: QueryMsg,
+        execute: ExecuteMsg,
+        migrate: MigrateMsg
+    };
+}

contracts/treasury/examples/schema.rs

@@ -0,0 +1,10 @@
+use treasury::msg::*;
+use cosmwasm_schema::write_api;
+
+fn main() {
+    write_api! {
+        instantiate: InstantiateMsg,
+        query: QueryMsg,
+        execute: ExecuteMsg,
+    };
+}

contracts/treasury/src/lib.rs

@@ -4,7 +4,7 @@ extern crate core;
 pub mod contract;
 mod error;
 mod execute;
-mod msg;
+pub mod msg;
 mod state;
 
 mod grant;