Use standardised methods for configuring the panda during panda scans

When we first implemented PandA scans, we had to create our own methods for configuring everything. Now, most of the configuration has been standardised in `ophyd-async` using the `StandardDetector` interface, where the 'detector' refers to the file writing block, rather than the Eiger.

## Acceptance Criteria
- Our `HDFPanda` uses `prepare` to setup PCAP
- Trigger generation to the Eiger is done using `StandardFlyer` with an instance of `StaticSeqTableTriggerLogic`
- We can then use `kickoff`, `complete`, and `stop` for our panda