Create GitHub pipeline to reject code not formatted with clang-format

We should really add a GitHub pipeline that fails if the code is not formatted with clang-format.

The script should be along these lines:

SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
ROOT_DIR="${SCRIPT_DIR}/.."
SOURCE_DIR="${ROOT_DIR}/../SC"
HOST_TOOLS="${ROOT_DIR}/_Build/HostTools"
CLANG_FORMAT="$HOST_TOOLS/clang/bin/clang-format"
cd "${SOURCE_DIR}" && find . \( -iname \*.h -o -iname \*.cpp -o -iname \*.mm -o -iname \*.m -o -iname \*.inl \) -not \( -path "*/Dependencies/*" -o -path "*/Build/Windows/resource.h"  \) | xargs "${CLANG_FORMAT}" -i

Pagghiu / SaneCppLibraries

Create GitHub pipeline to reject code not formatted with clang-format #4