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

[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.