Feature/attach file

[dboling19]

Description

Adds the ability for users to add files to announcements. Only one file can be added currently. File deletion, updating, and reupload all works. Moderators can view the files and remove or change files as needed during moderation. Files are opened in a new tab in the user's browser, and can be downloaded through the browser after opened.

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Tests are added to confirm when a file is added, the correct file was added. If the contents or filename is different, the test confirms that there was a change and will fail.

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes

[dboling19]

Addresses issue #45

[dboling19]

Added a .php-version file to specify the php version Symfony uses. This is easily changed later should the project ever be updated to a newer PHP version. The .gitignore file had to be updated to better fit the directory structure and keep the required directory /public/uploads/files/ in git files, while leaving any user/test files within behind.