Add recent charts and reports portlet

[mkzia]

Description

This PR adds the recent charts and report portlet. The following files were changed:

• classes/Rest/Controllers/SummaryControllerProvider.php was updated to add a new REST endpoint recentchartsreports. This endpoint returns a user's recent charts and reports in JSON format.
• configuration/etl/etl_tables.d/xdb/reports.json was updated to modify the Reports table to include the last modified date.
• configuration/etl/etl.d/xdmod-migration-8_1_2-8_5_0.json was added to add the last modified field to the Reports table when migrating.
• classes/XDReportManager.php was updated to return the newly addedlast_modified field when fetchReportTable is called.
• configuration/assets.json was updated to include the this portlet
• html/gui/js/modules/ReportGenerator.js was updated to add a new listener called load_report. This listener is used to fire an event that selects the report clicked in the recent charts and reports portlet.
• html/gui/js/report_builder/ReportsOverview.js was updated to add a new listener called load_report that opens the report selected by the load_report listener in html/gui/js/modules/ReportGenerator.js.
• html/gui/js/modules/summary/RecentChartsReportsPortlet.js was added to render the recent charts and reports portlet.

To enable, add the following to /etc/xdmod/roles.d/summary.json

{
    "+roles": {
        "+default": {
            "summary_portlets": [
                {
                    "name": "Recent Charts and Reports",
                    "type": "RecentChartsReportsPortlet",
                    "config": {}
                }
            ]
        }
    }
}

Motivation and Context

To make it easier for selected users to quickly access their recent charts and reports.

Tests performed

Manually tested the functionality. Have plans to add integrations tests.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project as found in the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[jpwhite4]

Need to fix merge conflicts