feat: add lightning node simulation activity designer

[Extheoisah]

Closes #829

Still a WIP

Description

This PR enables a user to automate lightning payment simulations between nodes (limited to LND and c-lightning ATM).

Tasks

• add simulation activity designer UI
• programmatically create and save simulation activity to network.json file
• programmatically create and save sim.json config file needed to run simulation
• map docker volumes for simln docker container
• start and stop a simulation
• add simulation status indicator UI for running nodes
• add simulation logger or output simulation file (e.g. sim-result.json) for users to download
• add unit and e2e tests for simulation

Known Bugs/Issues

• simln docker container sometimes doesn't pick up the tls cert of nodes in the network update: Fixed

[jamaljsr]

Hey @Extheoisah thanks for opening this draft PR. Please tag me as a reviewer when you are ready for me to take a look at it.

[Extheoisah]

Hey @Extheoisah thanks for opening this draft PR. Please tag me as a reviewer when you are ready for me to take a look at it.

Sorry for responding to this message late. I should have finalized this a while ago but I kept finding ways to add features (which broke things) instead of pushing the MVP among other commitments.
I have stashed those changes and will be pushing just the sim feature in a bit. Due to the rebase, I'm having some issues running the sim which I'm fixing.
I'll tag you when that's done.

[Extheoisah]

@jamaljsr This is ready for first-pass review. You'd notice some of the tests are broken but I'm working to fix them and add a new test for the newly added activity designer. Aside from that, the MVP features are in place and it works.