Move type defs to typescript-typingsd

packages/typescript-typings/types/detect-node/index.d.ts

@@ -0,0 +1,3 @@
+declare module 'detect-node' {
+    export const isNode: boolean;
+}

packages/typescript-typings/types/json-rpc-error/index.d.ts

@@ -0,0 +1,8 @@
+declare module 'json-rpc-error' {
+    export class InternalError extends Error {
+        constructor(err: Error | string);
+    }
+    export class MethodNotFound extends Error {
+        constructor();
+    }
+}