Add previously untracked .ignore files and .yarnrc

Dependencies

Change contents

• file addition: .yarnrc (-xw-x--x--)
  [1.0]
  + --ignore-engines true
• file addition: .vscodeignore (-xw-x--x--)
  [1.0]
  + .vscode/**

  + .vscode-test/**

  + out/**

  + src/**

  + .gitignore

  + .yarnrc

  + vsc-extension-quickstart.md

  + **/tsconfig.json

  + **/.eslintrc.json

  + **/*.map

  + **/*.ts
• file addition: .ignore (-xw-x--x--)
  [1.0]
  + /.vscode-test

  + /coverage

  + /css

  + /node_modules

  + /out

  + /dist

  + /test-reports

  + *.vsix