v0.5

changed the edition from 2018 to 2021
updated dependency base64 to version 0.22

v0.4.1

updated dependency base64 to version 0.21

v0.4

removed TcModel (obsolete since there is only one version, use TcModelV2::try_from instead)
removed TcModelV1
removed VendorSet
removed ::new() implementation for the following structs (use ::default() instead)
- TcModelV2
- PublisherRestriction

v0.3

renamed TCModel to TcModel
renamed TCModelV1 to TcModelV1
renamed TCModelV2 to TcModelV2
TcModelV2
- renamed TCSegment to TcSegment
- renamed PublisherTC to PublisherTc

v0.2

TCModelV1
- renamed purpose_consents to purposes_consent
TCModelV2
- renamed the following fields
  - purpose_consents -> purposes_consent
  - purpose_li_transparency -> purposes_li_transparency
  - vendor_consents -> vendors_consent
  - vendor_li_consents -> vendors_li_consent