Compile Translation Files into AST Format

Overview:
Steps to Implement (See ui-plugin-find-user PR for example):

• Add @formatjs/cli as a dev-dep

  yarn add -D @formatjs/cli

• Add the following command to package.json with (replacing <ui-module-name> with your module name):

  "formatjs-compile": "formatjs compile-folder --ast --format simple ./translations/<ui-module-name> ./translations/<ui-module-name>/compiled"

• Run the command 

  yarn formatjs-compile

  If there are any errors, contact @Peter Murray to let him know of the error and he will work with Lokalise to get the files corrected. After Lokalise corrects files, update your branch from master.

• Modify Jenkinsfile to run formatjs-compile under runScripts section:

  runScripts = [ ['formatjs-compile': ''], ]

See https://github.com/folio-org/stripes/blob/master/doc/dev-guide.md#pre-compiling-translations-into-ast-format for reference.