Expose the application specific version in App.Core package

### Description

Currently the only way of getting the version number specified by the application developer when creating a build is through the KubernetesWrapper Api. This is a relatively costly call just to get the application version number. This should be available in the Core Code as a simple api that application developers can pick up.

### Additional Information

_No response_

### Tasks

_No response_

### Acceptance Criterias

- [ ] Application version number is available through the .Net Api's and available for the application developers.

Start by inspecting the App.Core public API and the existing KubernetesWrapper API path that exposes the application version. Trace where the application-defined version is stored or retrieved, then confirm that the .NET API exposes it directly without the wrapper; done when application developers can obtain the version through App.Core.

Written by the indexing model from the issue text.