[Concept] Placing Investigation on child parts of several own assets

**As** user
**I want** to create notifications on several child parts of selected assetes in a batch
**so that** I could efficient send reports on defected subparts for multiple vehicles

## Hints / Details

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## Acceptance Criteria
- [ ] Investigations COULD be created on multiple assets in one batch
- [ ] On Investigation level, the components to be reported (e.g. Gear box) could be selected
- [ ] Specification how components could be identified. (SerialPart or PartAsPlanned)
- [ ] Investigation is created for each sub component
- [ ] Investigation could be edited on investigation level
- [ ] investigations reported together should be identifiable in the system

## Out of Scope

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The issue names no files, tests, or entry points, so begin by clarifying the investigation, asset, and component model and how batch creation should work. Use the acceptance criteria to define done: selectable child components, one investigation per subcomponent, editing at investigation level, and a way to identify investigations reported together.

Written by the indexing model from the issue text.