LangChain Elasticsearch Integration

LangChain Elasticsearch is an integration package that connects LangChain with Elasticsearch. It provides components for vector storage (`ElasticsearchStore`), chat message history (`ElasticsearchChatMessageHistory`), and embedding caching (`ElasticsearchEmbeddingsCache`). The current version is 1.0.0, and it follows a frequent release cadence, often aligning with LangChain Core updates.