Feature: entity computed property

[VictorTBX]

#68

This is still a draft, I'd like of understand if I'm on the right path before continuing.

Proposed Changes

1. Add feature for defining function properties, updating them when properties are set

Author/Contributor

• If documentation is needed for this change, has that been included in this pull request -> Not yet
• Remember to check if code coverage decrease, if so, please implement the necessary tests -> Some unit testes need to be rewriten due to the use of strictly deep-equal. I'll do this when I'm sure of the next steps.

Reviewing Maintainer

• Label as breaking if this is a large fundamental change
• Label as either automation, bug, documentation, enhancement, infrastructure, or performance

[dalssoft]

great PR!

from #68 (comment)

I started developing this feature, but I'm stucked with two problems

with no tests I think it's hard to affirm it's only two problems... In order to improve this PR, even for a POC, tests are mandatory to understand the proposal and the implementation