Add civetweb.h to the public unit tests
Add civetweb.h to the public unit tests

This is needed for the function declarations that we are going to test

GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver