This Python script summarises the YAML files
generated by ``flang-omp-report``.
It outputs a summary in the form of:
```
- construct: parallel
num: 16
clauses:
- clause: firstprivate
num: 2
- clause: num_threads
num: 2
```
It can also combine all files generated by
``flang-omp-report`` into one log file.
Outstanding issues:
- It only works with ``ruamel.yaml`` installed
- Needs refactoring