Move move_money into a wasm module, add dynamic node test that uses move_money

move-money-dynamic/wit/dynamic_node.wit

@@ -0,0 +1,43 @@
+package vato007:ingey;
+
+interface types {
+    resource csv-row {
+        columns: func() -> list<string>;
+        values: func() -> list<string>;
+        entries: func() -> list<tuple<string, string>>;
+        value: func(name: string) -> option<string>;
+    }
+
+    resource csv-reader {
+        columns: func() -> list<string>;
+
+        next: func() -> result<csv-row, string>;
+        next-into-map: func() -> read-map;
+        has-next: func() -> bool;
+
+        // Get a row by values in one or more columns
+        query: func(values: list<tuple<string, string>>) -> csv-row;
+
+        read-into-string: func() -> string;
+    }
+
+    resource csv-readers {
+        get-reader: func(name: string) -> option<csv-reader>;
+        read-into-string: func(name: string) -> string;
+    }
+
+    resource csv-writer {
+        write-row: func(row: list<tuple<string, string>>);
+        write-string: func(row: string);
+    }
+
+    resource read-map {
+        get: func(key: string) -> option<string>;
+    }
+}
+
+// This will apply to csv files only for simplicity. A separate node should be created for arbitrary readers/writers
+world dynamic {
+    use types.{csv-readers, read-map, csv-writer};
+    export evaluate: func(properties: read-map, readers: csv-readers, writer: csv-writer);
+}