Add fuzzer target from oss-fuzz project and integrate it into the build system...

Add fuzzer target from oss-fuzz project and integrate it into the build system via FUZZER CMake variable.
4 jobs for integrate-fuzz-testing in 20 minutes and 50 seconds (queued for 3 minutes and 42 seconds)
Status Job ID Name Coverage
  Build
passed #34415
build

00:07:20

passed #34416
build_clang_libcpp

00:06:42

passed #34417
build_gcc_49

00:07:27

passed #34418
build_mingw64_fedora

00:06:45