1. Extension renamed.
   
2. Application converted to a Service Application.
3. New SDK module to wrap up extension methods.
4. Stimulsoft version 2020.5.2.0.
5. Version numbers solved.
6. Demo Application rebuilt. 

Notes:

STI_SDK_NET is the module create to encapsulate all extensions actions, furthermore to keep improving the maintainability of Stimulsoft Component I do not recommend calling directly all those extensions action unless you have your own SDK to wrap that as well.