Merge branch 'cgg' into 'clean_edge_collapse'

Cgg

See merge request !76
9 jobs for clean_edge_collapse in 5 minutes and 4 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Test
passed #84399
VS2015
VS2015-32-bit

00:01:24

passed #84398
VS2015
VS2015-64-bit

00:01:36

passed #84397
VS2017
VS2017-32-bit

00:01:48

passed #84396
VS2015
VS2017-64-bit

00:01:34

passed #84393
Linux
clang-c++11

00:03:55

passed #84395
Linux
cppcheck

00:03:12

passed #84400
Linux
doc

00:00:11

passed #84392
Linux
gcc-c++11

00:05:04

passed #84394
Apple
macos-c++11

00:01:58