use cmakelists.txt from openflipper submodule which includes warnings

for qt 5.7 and 5.8
11 jobs for featureWarnBadQtVersions in 72 minutes and 48 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #32287
Apple
Mac-Cpp11

00:38:27

passed #32286
Qt551 VS2013
VS2013-Qt-5.5.1-x64

00:21:23

passed #32283
Qt56 VS2015
VS2015-Qt-5.6.2-x32

00:24:07

passed #32282
Qt56 VS2015
VS2015-Qt-5.6.2-x64

00:26:07

passed #32285
VS2015
VS2015-Qt-5.9.0-x32

00:29:23

passed #32284
VS2015
VS2015-Qt-5.9.0-x64

00:27:16

passed #32279
MultiThreads Linux
clang-c++11-Qt5

00:14:26

passed #32280
MultiThreads Linux
clang-c++11-Qt5.9.0

00:12:58

passed #32281
MultiThreads Linux
cppcheck

00:03:19

passed #32277
Linux
gcc-c++11-Qt5

00:04:53

passed #32278
Linux
gcc-c++11-Qt5.9.0

00:05:02