Add browsers command

[bahmutov]

A new good feature to have: cypress browsers command that would show a list of detected browsers. Now similar information can be shown using

$ node node_modules/cypress/dist/Cypress.app/Contents/Resources/app/packages/launcher/index.js 
Launcher project exports
{ [Function: init]
  update: [Function: update],
  detect: [Function: detectBrowsers] }
⛔️ please use it as a module, not from CLI
detected 3 browsers
[ { name: 'chrome',
    displayName: 'Chrome',
    version: '62.0.3202.94',
    path: '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome',
    majorVersion: '62' },
  { name: 'chromium',
    displayName: 'Chromium',
    version: '60.0.3110.0',
    path: '/Applications/Chromium.app/Contents/MacOS/Chromium',
    majorVersion: '60' },
  { name: 'canary',
    displayName: 'Canary',
    version: '65.0.3287.0',
    path: '/Applications/Google Chrome Canary.app/Contents/MacOS/Google Chrome Canary',
    majorVersion: '65' } ]

[bahmutov]

Sample output

$ bin/cypress browsers
detected 3 browsers
Browser info
-------------------------------------------------
name      displayName  majorVersion  version     
--------  -----------  ------------  ------------
chrome    Chrome       62            62.0.3202.94
chromium  Chromium     60            60.0.3110.0 
canary    Canary       65            65.0.3287.0 

Browser paths
------------------------------------------------------------------------------------
name      path                                                                      
--------  --------------------------------------------------------------------------
chrome    /Applications/Google Chrome.app/Contents/MacOS/Google Chrome              
chromium  /Applications/Chromium.app/Contents/MacOS/Chromium                        
canary    /Applications/Google Chrome Canary.app/Contents/MacOS/Google Chrome Canary

[jennifer-shehane]

Actually this is still a pretty good idea. Although, I think this could be bundled into the cypress info command. It is in proposal here: #4540

I'm going to close this issue and make a comment there about this browser info formatting - because I like how you have it.