feat: emit event with simple types in project management callExtension

[ivelin]

Is your feature request related to a problem? Please describe.
The current signature of event emitted from ProjectManagement callExtension is a composite data type that creates issues with parsed by thegraph.

Describe the solution you'd like
Add an event emitted by callExtension that uses simple data types that are easy to parse by thegraph and easier to trace on etherscan.

Additional context
@nerderlyne provided an example event signature here:
https://gist.github.com/nerderlyne/7a3478da180c244f32c267e149da81ac#file-gistfile1-txt-L197