Get library lessons.

<br> <i>Replaces "AVRCMSService/External/AVRGetLibrary" service.</i> </br> <br> <b>CategoryId</b>: Category Id optional</br> <br> <b>LessonType</b>: 1 (3D), 4 (360), 5 (MVB)</br> <br> <b>Offset</b>: Page number 0 to n</br> <br> <b>Next</b>: Records per page</br> <br> <b>SortBy</b>: VIEWASC, VIEWDESC, NAMEASC, NAMEDESC, DATEASC, DATEDESC</br> <br> <b>SearchTerm</b>: searches through lessonId, name, tags and description/objective</br>

{
  "instituteId": 1,
  "categoryId": 10,
  "lessonType": 1,
  "next": 10,
  "sortBy": "VIEWDESC"
}