- Add postgremaddmbedding adoc page. - Auto-configuration: - add missing boot-starter. - refactor autoconf class and properties to accomodate the PostgresMlEmbeddingOptions. - PostgesMlEmbeddingClient - Add the (default) options field and remove old fields. - Implement default and request options merging. - Add tests for options and merging. - Remove redundant code. - Code style fixes.