Removal of Template, Blaze, BlazeLayout, FlowRouter, DDPRateLimiter, Session, UAParser, Promise, Reload and CryptoJS global variables (#12433)

* First wave of removal of Meteor global

* Second wave of removal of Meteor global

* Third wave of removal of Meteor global

* Fix tests

* Remove global variable SHA256

* Remove global variable WebApp

* Remove global variable EJSON

* Remove global variable Email

* Remove global variable HTTP

* Remove global variable Random

* Remove global variable ReactiveDict

* Remove global variable ReactiveVar

* Remove global variable Accounts

* Remove globals variables Match and check

* Remove global variable Mongo

* Remove global variable moment

* Remove global variable Tracker

* Remove global variable Blaze

* Remove global variables FlowRouter and BlazeLayout

* Add FlowRouter to eslint global in tests file

* Remove global variable DDPRateLimiter

* Remove global variable Session

* Remove global variable UAParser

* Remove global variable Promise

* Remove global variable Reload

* Remove global variable CryptoJS

* Remove global variable Template

* Fix ESLint