Add support for babel plugin formatjs

Created by: VoloshchenkoAl

Load to project babel-plugin-formatjs if the project includes formatjs.config.js file.

formatjs.config.js file includes options for babel-plugin-formatjs plugin. For example:

module.exports = {
  'idInterpolationPattern': '[sha512:contenthash:base64:6]',
  'ast': true
}