chore: fix travis not installing builder packages

.travis.yml

@@ -1,11 +1,25 @@
 language: node_js
 
-cache: npm
+cache:
+  directories:
+    - node_modules
+    - builder/node_modules
+    - packages/dandi/core/node_modules
+    - packages/dandi/logging/node_modules
+    - packages/dandi/model-builder/node_modules
+    - packages/dandi-contrib/aws-lambda/node_modules
+    - packages/dandi-contrib/config-aws-ssm/node_modules
+    - packages/dandi-contrib/data-pg/node_modules
+    - packages/dandi-contrib/mvc-auth-firebase/node_modules
+    - packages/dandi-contrib/mvc-express/node_modules
+    - packages/dandi-contrib/mvc-view-ejs/node_modules
+    - packages/dandi-contrib/mvc-view-pug/node_modules
 
 install:
   - "npm install"
   - "tsc --version"
   - "ts-node --version"
+  - "pushd builder && npm install && popd"
   - "npm run install-packages"
 
 script:

_examples/simple-console/src/app.ts

@@ -1,5 +1,8 @@
 import { EntryPoint, Inject, Injectable, Logger } from '@dandi/core'
 
+const RUN_FAKE_WORK_TIMEOUT = 5
+const SIM_FAKE_WORK_TIMEOUT = 50
+
 @Injectable(EntryPoint)
 export class SimpleConsoleApp implements EntryPoint {
 
@@ -8,15 +11,15 @@ export class SimpleConsoleApp implements EntryPoint {
   public async run(): Promise<void> {
     this.logger.debug('Just starting up here')
 
-    await this.fakeWork(5)
+    await this.fakeWork(RUN_FAKE_WORK_TIMEOUT)
 
     this.logger.info('Ready to go!')
 
     this.simulateDoingStuff()
   }
 
   private async simulateDoingStuff(): Promise<void> {
-    await this.fakeWork(50)
+    await this.fakeWork(SIM_FAKE_WORK_TIMEOUT)
     this.logger.warn('Hey maybe look into this okay')
     this.logger.error('Okay stop everything, something is wrong')
     this.logger.error(new Error('FIXME'))