Rename `create_ude_component` to `NeuralNetworkBlock`

[SebastianM-C]

Checklist

• [x] Appropriate tests were added
• [ ] ~Any code changes were done in a way that does not break public API~ package not released yet
• [x] All documentation related to code changes were updated
• [x] The new code follows the contributor guidelines, in particular the SciML Style Guide and COLPRAC.
• [x] Any new documentation only uses public API

Additional context

Fix #9. The main public API for this package is the NeuralNetworkBlock.