Function createIdentityProviders

createIdentityProviders(
    store: EventStore,
    pool: ApplesaucePool,
    tiers: RelayTiers,
    options?: IdentityProviderOptions,
): IdentityProviders
Host-backed identity lookups for kehto's createIdentityService.

Profile, follows, relays and mutes are read from the shell's EventStore and, on a miss, loaded once through an applesauce address loader that asks the discovery tier. Lists, zaps, blocked keys and badges return the spec-shaped empty value: kernl does not claim data it has not fetched.
Parameters
- store: EventStore
  The shell's single event store.
- pool: ApplesaucePool
  The shared applesauce pool.
- tiers: RelayTiers
  Relay tiers; the discovery tier serves misses.
- options: IdentityProviderOptions = {}
  Loader override for tests.
Returns IdentityProviders
Lookup callbacks keyed as kehto's options expect.
Example
```
const providers = createIdentityProviders(eventStore, pool, tiers);
runtime.registerService('identity', createIdentityService({ getSigner, ...providers }));
```