[Pangolin] Deliver changes from Sprint 14 - 2.2-develop

 - MQE-528: Robo commands should override certain files.
 - MQE-382: Adding custom "assertElementContainsAttribute" method.
 - MQE-572: Expose selenium configuration from within our .env file
 - MQE-513: added attachment (screenshots/logs) support in Allure report
 - MQE-439: .env.example parameter example comment block
 - MQE-541: changed to use stepKey for test step sequencing.
 - MQE-569: added SampleTests in module blacklist and not allowed to generate
 - MQE-570: Sanitize MAGENTO_BASE_URL (.env file) and Selenium params
 - MQE-574: selector or selectorArray attribute is required for 'click'
 - MQE-583: set release version to 1.0.0 and updated composer dependencies.
 - MQE-347: Use a remove tag instead of a remove attribute
 - MQE-386: MFTF Compatibility with Windows Machine
 - MQE-592: Audit Test Cases on Firefox/Chrome on Windows/OSX
 - MQE-599: Move composer.json, README, etc from EE to CE

[performance] MAGETWO-75786: Incorrect count for category filter at layered navigation for configurable with no available options

- fix composer entry breaking windows robo commands

 - revert repositories node

 - update functional composer.json

 - created README.MD in Magento (Open Source)

 - updated compose.json files prepared to MFTF release

 - updated compose.json files prepared to MFTF release

- add default chrome config to function.dist.yml file

- Removing git message in the MinimumTestCest XML.

- Removing the Robo environment commands.
- Adding a Functional command to Robo.
- Removing the "skip" group from the CMS test.
- Adding the "skip" group to the Configurable Product test.

- strip @env tags from Cest.xml files
- change test flows to be more robust

- Removing the Robo PhantomJS command.

- Adjusting the waitForPageLoads time values.

- Removing PhantomJS from Tests.
- Unskipping the CMS test.
- Skipping the Configurable Product test.
- Skipping all Sample Tests.

- update Robofile to use DIRECTORY_SEPARATOR constant

- add new debug flag and logic

- Made SELENIUM_VARS optional in .example, as they now can be.

- Added a comment block at the top of the file that contains example values for each of the supported parameters.
- Removing DB parameters, part of MQE-404: Remove DB variables from .env.example.

- changed functional.suite.dist to set host,port,protocol, and path based on env.
- added above env parameters to env.example

(cherry picked from commit e08c27e)

    - Replacing "userInput" with "expectedValue".
    - Adding example for asserting "0" is present in an attribute.
    - Adding another example to the SampleCest file.
    - Adding examples to the SampleCest file under "CustomMethods".

- Adjusting the commands that Robo executes so it overrides certain files.

[EngCom] Public Pull Requests - 2.2-develop
 - MAGETWO-84981: Trying to get data from non existent products #12539
 - MAGETWO-84979: [Backport 2.2-develop] Fix swagger-ui on instances of Magento running on a non-standard port #12541
 - MAGETWO-84903: Added namespace to product videos fotorama events #12469
 - MAGETWO-84862: [Backport 2.2-develop] #11409: Too many password reset requests even when disabled in settings #11435
 - MAGETWO-84856: Issue 12506: Fixup typo getDispretionPath -> getDispersionPath #12507
 - MAGETWO-84808: 12110: Missing cascade into attribute set deletion. #12167
 - MAGETWO-83503: [2.2] - Add command to view mview state and queue #12122
 - MAGETWO-80223: Fix syntax of expectException() calls #11099