Creating a new solver

How to create a new JSO-compatible solver:
- NLPModels input
- GenericExecutionStats output
- `bmark_solvers` against IPOPT on CUTEst problems
- Performance profiles and tables

Don't overexplain any part or it becomes too long.

cf @joaoluisro

Start by reviewing the existing JSOTutorials.jl tutorial structure and the issue's required concepts: NLPModels input, GenericExecutionStats output, and bmark_solvers comparisons against IPOPT on CUTEst problems. Define the tutorial's scope around concise explanations, performance profiles, and tables; done means the complete solver-creation workflow is documented without overexplaining any section.

Vom Indexierungsmodell aus dem Issue-Text verfasst.