[!114] Skip test-cornerstoragerefwrap on buggy g++

Merge branch 'skip-test-on-buggy-g++' into 'master'

ref:core/dune-geometry Closes: #19.

See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87288

See merge request core/dune-geometry!114

Closes #19 (closed)

(cherry picked from commit 09f3cd51)

c5ee6995 Skip test-cornerstoragerefwrap on buggy g++