v3.0.1

Changelog

rules_score: unit documentation layout

• Unit pages are rendered to units/<unit>/index.rst. Design files are staged in
  units/<unit>/design/. Previously: units/<unit>.rst and units/<unit>_design/.
• Sphinx exclude pattern **/units/*_design replaced by units/*/design.
• Two different units with the same name in one dependable_element now fail the build
  (previously the second was silently dropped).
• File collisions while staging a unit's design files now fail the build.
• PUML basenames no longer need to be unique across units.

Added

• sync_skills(repo_skills_target = None): optional label of a filegroup with the repo's
  committed score-* skills. Required when .github/skills has its own BUILD file.
• .devcontainer/run-tool: standard SCORE tool launcher.

Fixed

• component(requirements = ...) accepts assumed_system_requirements targets, so component
  requirements can derive directly from assumed system requirements without a feature layer.