** Added initial version of WorkspaceFieldIOHandler and a text field
implementation of it
** Implemented workspace material reply saving end-point
** Removed deprecated material processing system
** Added storeFieldValue and retrieveFieldValue methods into
WorkspaceMaterialFieldController
** Changed workspace answer rest resource to accept materialId,
fieldName, embedId and value istead of name and value pair
** Changed workspace material field to identify field by embedId +
queryField + workspaceMaterial combination
** Added support for saving materials into workspace material reading
view
** Removed deprecated WorkspaceTextFieldHandler
** Replaced WorkspaceMemoFieldHandler with client side renderer and
WorkspaceMemoFieldIOHandler