Investigate multi-core parallelism using Parallel.js

[nikoscham]

Investigate the integration of Parallel.js (https://parallel.js.org/) to enable multi-core parallel processing in the FEAScript library.

Tasks:

• Review the capabilities of Parallel.js.
• Identify potential areas within FEAScript that could benefit from parallel execution (e.g. domain decomposition, integration in linear solvers such as the Jacobi https://github.com/FEAScript/FEAScript-core/blob/main/src/methods/jacobiSolverScript.js)

This is issue is just for exploring the Parallel.js capabilities. I will create sub-issues (or different issues) for specific tasks.