0.9.0 release

New features:
- Build-definition: Switch build definition files from JSON to YAML format
- tests: unit: Modify unit tests

Bug fixes:
- dependency: sort packages alphabetically
- examples: drop readme file
- argparse: fix version output

Documentation updates:
- README: json to yaml format

Container images:
- dockerfile: debian: ubuntu: add gcc-multilib and linux-libc-dev packages
- dockerfiles: sort packages alphabetically