Constructor LMS release 87

Overview:
- Cover image editor
What's new:
- Upload image editor
  - Content creators can add a cover image to any activity in the system, so that programs, courses and activities within the courses will clearly indicate what they are about. However, these images should comply with a standard size so that all cover images look universal, and all LMS service elements can be shown on top of course or activity tiles. We added an image editor to scale up and down, crop images to make them fit into the standard placeholder when uploading cover images. This image editor was also added to the instructor block so that the original photo for instructor can be modified to look better in the course details.
Fixes and improvements:
- Reports enhancements
  
  We have added several improvements to the reports:

- - We save original sorting of activities when show a per-activity report in Primary report and in custom reports. Now instructors can easily understand what the learner's progress within some course or some program is.
  - We reworked how filters look in full-screen report view to eliminate showing several scroll bars and allow user to scroll horizontally even if user haven’t reached the bottom of the grid. We support native scrolls gestures in Mac OS.
  - Custom reports can now be saved under a new name or easily duplicated thus offering a fast solution to create report templates. We have also updated permissions to edit custom reports, so now authors of the report can modify the report thus non-authors can create a copy of the report and work with the copy
- Fixes