Custom Mocha retries

[RonanDrouglazet]

No description provided.

[ruizb]

How to update this branch (⚠️ very manual and shady...):

• Clone the https://github.com/webdriverio/webdriverio repository
• Get the latest changes with git fetch origin master && git merge origin/master master
• Go to the packages/wdio-mocha-framework directory
• Copy all the files / folders
• Go to the master branch of this (i.e. ebuzzing/wdio-mocha-framework) repository
• Paste all the files / folders at the root
• Create a commit with the changes, e.g. Hard reset to version 5.17.0, and push
• Use git merge master on this branch and fix the conflicts, if any
• Copy the index.js file of this branch
• Paste the copied index.js file into the packages/wdio-mocha-framework directory of the webdriverio project, and replace its existing index.js file by the one you copied
  (to apply the changes made by this PR)
• Build the project with npm run build at the root of the webdriverio project
• Copy the packages/wdio-mocha-framework/build directory created by the npm run build command
• Paste it at the root of this project (i.e. ebuzzing/wdio-mocha-framework) on this branch
• Commit all the changes and push a new commit on this branch
• Get the last commit hash, e.g. 1234567, and use it in https://github.com/ebuzzing/service-web-formats/blob/3756fc584bd57a5412f42be86a1403ac8a39d802/webdriverio-test/package.json#L30

(yep, not handy, but it works)