tools: Suggestion to move calculator tool into its own package

[peterhellberg]

Background

Currently the calculator tool (tools.Calculator) is located in the tools package, it depends on the third party go.starlark.net/starlark

Assumption

I assume this dependency is not meant to be brought into the dependency graph for all of the other tools since they depend on the tools package (due to them referencing the tools.Tool interface)

Question

Would it be reasonable to move the calculator functionality into its own package (tools/calculator/calculator.go)