Add Runtime errors for IdentityMetadata use cases

[britsta]

Readiness checklist

• I added/updated tests.
• I ensured that the PR title is good enough for the changelog.
• I labeled the PR.
• I self-reviewed the PR.

Description

It should not be possible to create IdentityMetadata for Identities whose address is not known. An address is known if it is your own address or the address of a peer of a Relationship.

In addition, a special error for records that could not be found was introduced for IdentityMetadata. This was necessary because IdentityMetadata is usually accessed by an Integrator of a Connector via its combination of reference and key and not via its id.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Files with missing lines	Coverage Δ
...kages/runtime/src/useCases/common/RuntimeErrors.ts	83.22% <100.00%> (+0.76%)	⬆️
...umption/identityMetadata/DeleteIdentityMetadata.ts	100.00% <100.00%> (+4.87%)	⬆️
...onsumption/identityMetadata/GetIdentityMetadata.ts	100.00% <100.00%> (ø)
...umption/identityMetadata/UpsertIdentityMetadata.ts	100.00% <100.00%> (ø)

[jkoenig134]

LGTM