Let Layotto support secret API

[seeflood]

What would you like to be added:
Layotto support same secret API (with Dapr's).

Why is this needed:
Layotto's goal is to build a Runtime API standard with Dapr and other communities (promote Dapr API as an industry standard, and Layotto as an implementation of this API), so it needs to support Dapr's secret API.
Therefore, this task needs to port Dapr's secret API into Layotto.
For Dapr's secret management related documents, see https://docs.dapr.io/developing-applications/building-blocks/secrets/

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity in the last 30 days. It will be closed in the next 7 days unless it is tagged (pinned, good first issue or help wanted) or other activity occurs. Thank you for your contributions.

[github-actions]

This issue has been automatically closed because it has not had activity in the last 37 days. If this issue is still valid, please ping a maintainer and ask them to label it as pinned, good first issue or help wanted. Thank you for your contributions.