Added return type for run build and compile tool

[rapra41]

No description provided.

[chrjorgensen]

@rapra41 Thank you for your contribution. 👍

Please provide a description of the PR, showing what is changed and why. We need this for later reasoning of the changes.

[rapra41]

If a developer wants to programmatically use the output of the build command(vscode-ibmi-projectexplorer.projectExplorer.runBuild), there is no way to capture the result.

The command behaves as a “fire-and-forget” action, which is fine for normal terminal usage, but does not support advanced use cases where the calling code expects structured data.
Need some changes in this PR(IBM/vscode-ibmi-projectexplorer#703) so also made changes here too.

[sebjulliand]

@rapra41 thanks. Is it ready for review? (it's still a draft at the moment)

[SanjulaGanepola]

I am collaborating with Rahul on this one. We will re-open when ready for review + will update the PR description.

@rapra41 Can I push some changes directly to this PR?

[rapra41]

Sure @SanjulaGanepola , that works for me. Please go ahead and push the changes directly to this PR.