Merge branch 'Simplify_CMakeList' into 'master'

Simplify c make list

See merge request !36
6 jobs for master in 8 minutes and 9 seconds (queued for 1 second)
Status Name Job ID Coverage
  Test
passed clang-c++11 #60475
Linux

00:06:59

passed CoMISo-VS2013-Qt-5.5.1-x64 #60477
VS2013 Qt551

00:01:07

passed CoMISo-VS2017-Qt-5.10.1-x64 #60478
VS2017 IPOPT3129

00:01:10

passed gcc-c++11 #60474
Linux

00:06:48

passed macos-c++11 #60476
Apple

00:02:44

 
  Deploy
passed trigger_build #60479

00:00:01