Fixing some optional params: copyrightText, licenseListVersion, packageVerificationCode

[lumjjb]

• Package copyrightText field (optional starting in 2.3 - PR includes change)

  • 2.3: https://spdx.github.io/spdx-spec/v2.3/package-information/#717-copyright-text-field

• LicenseListFIeld field (optional - PR includes change)

  • 2.3: https://spdx.github.io/spdx-spec/v2.3/document-creation-information/#67-license-list-version-field
  • 2.2: https://spdx.github.io/spdx-spec/v2.2.2/document-creation-information/#67-license-list-version-field
  • 2.1: Clause 2.7 in https://spdx.dev/spdx-specification-21-web-version/

• packageVerificationCode, looks like this is the same for 2.2 and 2.1 as it is for 2.3, 2.1 and 2.2 need to be updated (PR includes change)