version 0.5.0

[dsietz]

We've made breaking changes in this newest version 0.5.0!

1. For the following reasons, we have dropped the extractor and middleware functionality for the Data Tracker Chain and Data Usage Agreement features. (Resolves Isses #45, #46, and #49)
   • focus on remaining a light-weight and flexible SDK
   • incompatibility issues with actix-web version ~4
   • High vulnerability found in actix-web version 3.3.3
     • https://rustsec.org/advisories/RUSTSEC-2023-0034
   • High vulnerability found in actix-rt version 1.1.1
     • https://rustsec.org/advisories/RUSTSEC-2021-0124
   • improved Mean Time To Resolve (MTTR) of issues

   NOTE: The examples will still provide demonstration of how to implement these features using actix-web without axtractors or middleware.

2. Updated regex version to fix security vulnerability
3. 💥 New Feature
   Introduced the concept of a Data Usage Policy as part of the DUA feature. The DUP provides the extended detail that supports a DUA and implements the FidesLang Taxonomy.
   (Delivers #50)