re #7885 added SUM and ability to work with multiple values and sorted parameters in configuration, optimization
re #7885 changes in table generation and COUNT
re #7885 basic contingency table generation (not completely finished)
re #7978 added functionality of only showing assemblies with correct role (same as user), added functionality of showing only logged in users's configurations in "Rychle k"
re #7887 Deleting configurations and assemblies, Minor restructuralization.
Updating last merge.
Merge branch 'master' into 'enhancement/7886'
re #7881 ability to create or edit a user configuration and set or edit its basic attributes, operator value and configuration name are validated, if operator value is wrong user is redirected to main page, auto increment functionality changed to IDENTITY
re #7886 Assembly validator in progress (validating assembly SQLQuery + locations for existing assembly, not tested for new assembly).Added comments.Removing unused imports.
re #7779 Convert TableColumn -> ContingencyTableRow and send it to frontend. SQL query is now executed in specific class DatabaseInterface via SqlQueryManager.
re #7782 Created new class ExporterPDF with export to PDF functionality and renamed the former Exporter class to ExporterXLSX, changed the version of a library used for export to XLSX functionality implementation
re #7781 Created package utils for utility classes and created class Exporter with export to xlsx functionality