fixed qt path for ci configuration

added vs2017 and Qt5.10.1 to windows ci config scripts
checked out openflipper branch with patches for VS2017 freeglut linking

use different hostname for testdata

useful information. use echo command to display messages instead

are super fragmented. Maybe the finders should be reworked to deal with
this

allows finding of qwt

added qwt path to ci script

modified some entries in gitlab-ci.yml for testing

set process number to 4