Added gitlab ci files

8 jobs for CI
Status Name Job ID Coverage
  Test
canceled clang-c++11-Qt4 #426
Linux

00:41:51

passed clang-c++11-Qt5 #430
Linux

00:00:12

passed clang-c++98-Qt4 #428
Linux

00:00:19

passed clang-c++98-Qt5 #432
Linux

00:00:06

canceled gcc-c++11-Qt4 #425
Linux

00:41:50

passed gcc-c++11-Qt5 #429
Linux

00:00:11

passed gcc-c++98-Qt4 #427
Linux

00:00:12

passed gcc-c++98-Qt5 #431
Linux

00:00:04