Merge branch 'TESTING_documentation_updates' into 'master'

.gitlab-ci.yml

.gitlab/issue_templates/bug.md

.gitlab/issue_templates/cleanup.md

.gitlab/issue_templates/feature.md

.gitlab/merge_request_templates/bug.md

.gitlab/merge_request_templates/cleanup.md

.gitlab/merge_request_templates/feature.md

README.md

ci/README.md

ci/ci-build.sh

ci/ci-test.sh

documentation/ci_faq.md

quad/Makefile

quad/scripts/ci-tests/test_communication.rb

quad/scripts/ci-tests/test_memory_integrity.rb

quad/scripts/ci-tests/test_safety_checks.rb

quad/scripts/ci-tests/testing_library.rb

quad/scripts/inactive-tests/run_virtual_test_flight.rb

quad/scripts/inactive-tests/tcp_stress_tests.py

quad/scripts/inactive-tests/test_logging.rb