Add new file

.gitlab-ci.yml

+  image: archlinux:latest
+  
+  stages:
+          -fuzzing
+  
+  fuzzing-testing:
+           stage: fuzzing
+           script:
+           - pacman -Sy make --noconfirm
+           - pacman -Sy cmake --noconfirm
+           - pacman -Sy clang --noconfirm
+           - mkdir build
+           - cd build
+           - CC=clang cmake ..
+           - make
+           - ./test/utility_fuzzer_test -max_total_time=60