Add CLI flag for filtering specific test cases and transactions in pact REPL files

[salamaashoush]

Is your enhancement request related to a problem? Please describe.

In most test runners (builtin or external), there is always a way to filter out tests you want to run. Currently, in Pact, there is no way to run specific test cases such as expect-*, bench, verify, and typecheck forms, or transactions like begin-tx, from a REPL file. Instead, all tests and transactions in the file must be evaluated.

Describe the solution you'd like

We could introduce a command line flag to filter REPL cases/transactions by their labels. For example, with a REPL file like this:

(begin-tx "hello-world")
  (load "test.pact")
  (expect "should greet the world" "Hello, World!" (test.hello-world))
  (expect "some other test case" "Hello, World!" (test.hello-world))
(commit-tx)

(begin-tx "hello-salama")
  (load "test.pact")
  (expect "should greet salama" "Hello, Salama!" (test.greet "Salama!"))
(commit-tx)

I can run

# Option 1 as an optional positional argument
pact my-module.repl "hello-salama" # will run only the "hello-salama" transaction
pact my-module.repl "hello-world -> should greet the world" # will run only the "should greet the world" test case from the "hello-world" transaction

# Option 2 as an optional argument
pact my-module.repl --testName="hello-salama" # will run only the "hello-salama" transaction
pact my-module.repl --testName="hello-world -> should greet the world" # will run only the "should greet the world" test case from the "hello-world" transaction

these are just to demonstrate the idea and ofc you can implement it the way it fits pact /kadena needs as long as it provide the needed functionality

Describe alternatives you've considered

Additional context

I am working on tooling/editor support, and it is really common for those editors to have a UI to run specific tests from a file. I am working on a Zed editor extension, and they have a nice way to run a test by using a tree-sitter query to find where to place the task run button (the play button from the screenshot)