This commit drops the 'ua_' prefix and changes the public includes
to the form `#include <open62541/server.h>` instead of the old
`#include <ua_server.h>`
The following commits where squashed in this commit:
* client_historical_data: Bugfix isInverse
* client_historical: Cleanup and refactoring to meet pr comments.
* client_historialdata: Add a test for client historical read raw.
* historical_client: support index range
* historical_client: refactoring and cleanup methods.
* historical: Make the build system configurable and rename server test.
* historical_data: cleanup
* client_historical: Add code for events and modified history
* client_historical: fix memoryleak
* hda_client: Fix client_historical example.
Ubuntu