chore: move azure code to own @llamaindex/azure package (#1601)

.changeset/tender-swans-call.md

packages/core/src/vector-store/index.ts

packages/core/src/vector-store/utils.ts

packages/llamaindex/package.json

packages/llamaindex/src/index.ts

packages/llamaindex/src/storage/index.ts

packages/llamaindex/src/tools/ToolsFactory.ts

packages/llamaindex/src/vector-store/AstraDBVectorStore.ts

packages/llamaindex/src/vector-store/ChromaVectorStore.ts

packages/llamaindex/src/vector-store/MilvusVectorStore.ts

...es/llamaindex/src/vector-store/MongoDBAtlasVectorStore.ts

packages/llamaindex/src/vector-store/PineconeVectorStore.ts

packages/llamaindex/src/vector-store/QdrantVectorStore.ts

packages/llamaindex/src/vector-store/SimpleVectorStore.ts

packages/llamaindex/src/vector-store/UpstashVectorStore.ts

packages/llamaindex/src/vector-store/WeaviateVectorStore.ts

packages/llamaindex/src/vector-store/index.ts

packages/llamaindex/tests/VectorStore.test.ts

packages/llamaindex/tests/package.json

packages/providers/storage/azure/package.json