fix: add missing dependency typedoc

Fixes #5

test/Schema.spec.ts

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018-2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -16,18 +16,10 @@ import {Logger} from '@openstapps/logger';
 import {expect} from 'chai';
 import {slow, suite, test, timeout} from 'mocha-typescript';
 import {join} from 'path';
-import {ProjectReflection} from 'typedoc';
 import {Converter, getValidatableTypesFromReflection} from '../src/schema';
 
 const logger = new Logger();
 
-type RecursivePartial<T> = {
-  [P in keyof T]?:
-  T[P] extends Array<infer U> ? Array<RecursivePartial<U>> :
-    T[P] extends object ? RecursivePartial<T[P]> :
-      T[P];
-};
-
 process.on('unhandledRejection', (err) => {
   logger.error('UNHANDLED REJECTION', err.stack);
   process.exit(1);
@@ -79,7 +71,7 @@ export class SchemaSpec {
 
   @test
   async getValidatableTypesFromReflection() {
-    const reflection: RecursivePartial<ProjectReflection> = {
+    const reflection: any = {
       children: [
         {
           children: [