Running FZL Tests

1. fx set workstation.x64 --with-base //garnet/packages/tests:zircon
2. fx build
3. fx serve
4. In another terminal: fx run -k -N
5. For the zxtests: at the command prompt: system/test/sys/fzl-zxtest-tests
6. For the unittests: at the command prompt: system/test/sys/fzl-tests