update table entity model with id and index
update service name
update soapui scripts

- update webservices for users, domain service groups
- update UI
- fix war structure to show UI

Upgrade Angular to 6.1.10 (i.e. latest): upgrade to the HttpClient.
Upgrade Angular Material to 6.4.7 (i.e. latest): upgrade to mat-*
elements, attributes and directives; fix date pickers; fix missing
md-input-containers elements.
Upgrade RxJS to 6.2.2 (i.e. latest). Remove RxJS from devDependencies.
Remove unused codelyzer dependency.
Remove no longer needed md2 dependency.
Add section for the certificate to the user screen.
Add certificate service to support uploading certificates to the server.

Add code to support adding, deleting and editing users in the front-end.
Rename username property to userName.
Add roles and a role service.

Rename files as per Angular guidelines.
Remove message filter and error log components.
Exclude the error log component.
Disabl the page helper until we figure out if we need it.

Prefer interfaces to classes where applicable.