refactor: move llm & callback manager to core module (#1026)

examples/package.json

examples/qdrantdb/preFilters.ts

examples/recipes/cost-analysis.ts

packages/community/package.json

packages/community/src/llm/bedrock/base.ts

packages/community/src/llm/bedrock/provider.ts

packages/community/src/llm/bedrock/providers/anthropic.ts

packages/community/src/llm/bedrock/providers/meta.ts

packages/community/src/llm/bedrock/utils.ts

packages/core/package.json

packages/core/src/global/index.ts

packages/core/src/global/settings.ts

packages/core/src/global/settings/callback-manager.ts

packages/core/src/llms/base.ts

packages/core/src/llms/index.ts

packages/core/src/utils/event-caller.ts

packages/core/src/utils/index.ts

packages/core/src/utils/llms.ts

packages/core/src/utils/wrap-llm-event.ts

packages/core/tsconfig.json