added searchviews to all tabs in coursesfragment and questionsfragment in meetingfragment
added searchview in related xml files and adjusted view in constraint layout
added filtermethod using Filter in courses- and thread adapter
added QueryBuild Utility class to search list of models
added searchviews to all tabs in coursesfragment and questionsfragment in meetingfragment added searchview in related xml files and adjusted view in constraint layout added filtermethod using Filter in courses- and thread adapter added QueryBuild Utility class to search list of models