ci(appveyor): build and test on windows

[gregswindle]

:bulb: TIP: Select the "Preview" Tab to help read these instructions.

1. Issue type

Type the letter "x" in the "checkbox" the best describe this issue.

• [ ] CIr: I want to discuss something else.

2. User story summary

Describe what you want to accomplish and in what role/capacity, and why it's important to you.

EXAMPLE: As a Job Applicant, I want to submit my resume In order to be considered for a job opening.

As a {role}, I must/need/want/should {do something} In order to {achieve value}.

3. Acceptance criteria

Replace the examples below with your own imperative, "true/false" statements for the behavior you expect to see, or the behavior that would be true if there were no errors (for defects).

• [ ] 1. Job Applicants receive a confirmation email after they submit their resumes.
• [ ] 2. An Applicant's resume information isn't lost when errors occur.
• [ ] 3. {criterion-three}
• [ ] 4. {criterion-four}

appveyor.yml

install:
  - ps: Install-Product node '7'
  - npm install -g npm --silent --quiet
  - npm install --silent --quiet

platform:
  - x86
  - x64

build: off

test_script:
  - node --version
  - npm --version
  - npm test