feat: call-actor tool

[MichalKalita]

closes #155

Generic tool for calling Actors dynamically, for clients without support for the dynamic tools list.

TODO:

• allow call only added tools
• add to add-tools description info, "'call-actor' can be used when the added tool is not found"
• add to this tool info "use 'add-actor' before this tool"
• merge branch feat/fewer-tools--improve-tool-output and setup as target

[MQ37]

Thank you, just a couple of comments. Please be sure to also add integration tests to the tests/integration/suite.ts for the call-actor tool. I would also personally move the tool to a separate file tools/call-actor.ts (but it's fine for now, we should refine the strucutre later on - there is an issue for that).

[MichalKalita]

Thank you, just a couple of comments. Please be sure to also add integration tests to the tests/integration/suite.ts for the call-actor tool. I would also personally move the tool to a separate file tools/call-actor.ts (but it's fine for now, we should refine the strucutre later on - there is an issue for that).

I wrote two simple tests: run them after the Actor is added to check if they work, and run them without adding an actor.

[MQ37]

LGTM