Feature/bloomreach integration mlt

[aChanEP]

Description:

Pull request integrates the more like this endpoint from bloomreach: https://help.bloomreach.com/display/BRINT/More+like+this+%28MLT%29+API

If the bloomreach settings are turned on the recommended items are going to be powered by bloomreach.

Linting:

• No linting errors

Component Updates:

• Component package requires update on npm @elasticpath/store-components

This will be part of PR #428 so can update the component number there.

Tests:

• E2E tests (npm test run with e2e)
• Manual tests

1.) To test turn on the bloomreach settings

2.) Fill in the new recommended items: mlt config.

"productRecommendationConfig": {
        "requestType": "request_type=mlt",
        "rows": "rows=10",
        "start": "start=0",
        "facetLimit": "facet.limit=20",
        "fl": "fl=pid%2Ctitle%2Cbrand%2Cprice%2Csale_price%2Cpromotions%2Cthumb_image%2Csku_thumb_images%2Csku_swatch_images%2Csku_color_group%2Curl%2Cprice_range%2Csale_price_range%2Cdescription"
      }

3.) notice that the component has been swapped and the products that are being recommended are coming from bloomreach.

4.) turn on storybook and notice that the recommended bloomreach product is also in storybook.

NOTE: Merge this PR before #428 as it is branched off of #428.

Documentation:

• Requires documentation updates