feat: significant restructuring

[agittins]

• more efficient processing of updates
• better handling of proxies being added/removed
• improvements to naming when first adding / browsing in select devices

User-visible / features

• feat: Shorten/redact scanner macs in configure status display
• distance_to... sensors are now created/removed in realtime as scanners come and go.
• fix: startup is now faster due to better asyncio usage

Breaking changes

• bermuda.dump_devices service/action format has changed! If you are using this please test as many items have been restructured
• scanners dict renamed to "adverts", now keyed as device/scanner tuples

Code changes

• clarification on processing order for metadevices
• no longer save/restore scanner list in config, now dynamically CRUD'd
• implement scanner list as properties to centralise changes
• add customisations to manufacturer lookups
• centralised name generation
• added Bluetooth Company Identifiers yaml
• switch to aiofiles for yaml imports, and place in separate task
• remove extra calls to async_update_data
• big refactoring of async_update_data to improve separation of concerns and decrease complexity
• reworking of prune_devices to avoid missing devices or creating churn
• add time check to redaction_list_update
• refactor device creation and updating to improve SOC and complexity
• change from MONOTONIC_TIME to monotonic_time_coarse
• broaden BDADDR_TYPEs and add METADEVICE_DEVICETYPES
• make BermudaDeviceScanner hashable
• make BermudaDevice hashable
• use platform constants now in core.
• change to_dict methods (and others) to avoid matching attributes by string. Improved data presentation.
• tidy up remove_config_entry_device
• use async_schedule_reload instead of immediate