As a user, I can filter Test Runs in the Test Runs List gadget based on time ranges

As a user, I can filter Test Runs in the Test Runs List gadget based on time ranges.

The data filtering should be based in the selection of a Date Range field and then some fields depending on that.

Date Range: either Custom, Time frame or Planned dates from Test Executions

• if "Custom", then you need to provide the dates of the time period:
  • Start date and End date: only the Test Runs with start date and end date between this range will be considered
• if "Time frame", then it can be either:
  • Current Week
  • Last Week
  • Current Month
  • Last Month
  • Last Days 

ACs:

• if "Time Frame" => "Last Days" is chosen, then the user must select the number of days (6 by default), which must be a non-negative number >= 0; choosing "6" means that Xray will consider Test Runs from the last 6 days (excluding today, whose inclusion is implicit); choosing 0 will only consider Test Runs from today
• by default, whenever adding the gadget in a dashboard, Date Range should have the value Time Frame => Current Week
• if "Planned dates from Test Executions" is chosen, then the minimum Begin Date and the maximum End Date will be chosen as start and end dates respectively 
• is Time frame => current week, last week, current month, last month is chosen or Custom is selected, then the date range will be chosen based on the selected period