Ability to generate a PDF of combined daily engagement reports

[asafkaganbezgin]

Users go to archive center and specify a time frame and then press download button. Reports published between the specified time frame are printed inside a PDF generated at server side. All of the reports are put inside one PDF file; reports inside of the file are separated by page break.

Things that are missing on server side:

• It should be determined which report information should be shown (not all report fields are currently displayed).
• Some fields are shown in Object format inside of report. They should show proper key value pairs inside report.
• CustomSensitive & ReportSensitive fields are not meant to be shown inside PDFs. However, if client side request them, they could be shown inside reports. There is no mechanism on server side to block that.
• Server side tests should be written.
• There are TODOs waiting to be handled.

Things that are missing on client side:

• Archive Center page should be prettified by staying consistent with the rest of the UI, showing proper information to the user.
• There should be start and end date fields for user to specify the time range. The current download button requests all reports in the system.

Closes AB#263

User changes

• It is possible to export reports published between a specified time frame.

Super User changes

• None

Admin changes

• None

System admin changes

• anet.yml or anet-dictionary.yml needs change
• db needs migration
• documentation has changed
• graphql schema has changed

Checklist

• Described the user behavior in PR body
• Referenced/updated all related issues
• commits follow a repo#issue: Title title format and these 7 rules
• commits have a clean history, otherwise PR may be squash-merged
• Added and/or updated unit tests
• Added and/or updated e2e tests
• Added and/or updated data migrations
• Updated documentation
• Resolved all build errors and warnings
• Opened debt issues for anything not resolved here

[lgtm-com]

This pull request introduces 1 alert when merging 2bce40f into c3cd9bc - view on LGTM.com

new alerts:

• 1 for Useless parameter

[lgtm-com]

This pull request introduces 1 alert when merging d6d2cba into 56825af - view on LGTM.com

new alerts:

• 1 for Useless parameter