Esp-idf-sbom

New Features

- add esp-idf-sbom manifest license command

Bug Fixes

- remove '+' from set of valid SPDXID characters

New Features

- add support for unified copyright years in license command
- add per package license and copyright report
- add license command
- add declared licenses into project package
- add copyright support to manifest

Bug Fixes

- harden NVD connection error handling