Use standardised methods for configuring the panda during panda scans

[olliesilvester]

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