Re #8583 - Display issued certificates
Re #8583 - Details page subject data
Re #8583 - Improved certificate listing
Re #8583 Certificate listing - downloading certificates as .pem instead of .crt
Re #8475 - Added code comments
Re #8475 - Create certificate, available CA selection
Re #8475 - Created constants.js for Rest API endpoint definitions
Re #8475 - Certificate item component added