added comment field in storage module

added url_base to cgiapp_prerun(), refactored multiple calls to ->query to ; added part_number to storage module; restored 10-digit storage vialId + validation; bugfix to update_storage_vial(), failed validation due to duplicate vialId and old update method didn't do changes_only; added online request form link to guest user hello page; moved token generation from Resources menu() to Role::Resources::create_form_tokens() for sharing between menu() & hello()

extended storage functions to handle sign-out of racks, and to display results of data import

extended storage functions - more params, ajax & server-side validation of input, edit of existing record, sign-out record

more fluidx plate reader work

fixed chimerism chart to allow only 1 entry per date - as CHIM panel replaced by 3 individual tests; minor edits to chimerism resulting from imported spreadsheet