Added day first date configuration to Schedule & Details settings page

[jbcurtin]

Description goes here. e.g. This PR contains the LibraryContent XBlock, which allows to display library content in a course.

JIRA tickets: https://tasks.opencraft.com/browse/BB-5429

Testing instructions:

1. Set branch to day-first-date-configuration

OPENEDX_RELEASE=day-first-date-configuration

2. Open up page

• http://localhost:18010/settings/details/course-v1:edX+DemoX+Demo_Course

3. Notice the dates are set to mm/dd/yyyy format
4. Edit cms/envs/common.py::FEATURES to include DAY_FIRST_DATE_CONFIGURATION

FEATURES = {
...
    DAY_FIRST_DATE_CONFIGURATION: True,
} 

5. Wait for LMS to restart
6. Go back to opened page

• http://localhost:18010/settings/details/course-v1:edX+DemoX+Demo_Course

7. Notice that the dates are now set with the day first, followed by month: dd/mm/yyyy

Author notes and concerns:
I'm not sure where the best place to expose this setting value in edx-platform. Would you like to suggest a location?

[farhaanbukhsh]

I have added some changes and pushed a feature branch to opencraft/edx-platform as jbcurtin/bb-5429-day-first-date-configuration, please change the source branch as well.

[jbcurtin]

Hi @farhaanbukhsh , I'm unable to update the feature branch. I've pushed an update to this pull request. The alterations are consistent with messaging so that the user isn't lost in what the feature might be about.

[farhaanbukhsh]

Closing in favour of #459