Auto-generate distro yamls + docs (#468)

# What does this PR do?

Automatically generates
- build.yaml
- run.yaml
- run-with-safety.yaml
- parts of markdown docs

for the distributions.

## Test Plan

At this point, this only updates the YAMLs and the docs. Some testing
(especially with ollama and vllm) has been performed but needs to be
much more tested.

llama_stack/providers/remote/inference/ollama/__init__.py

@@ -4,14 +4,10 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-from llama_stack.distribution.datatypes import RemoteProviderConfig
+from .config import OllamaImplConfig
 
 
-class OllamaImplConfig(RemoteProviderConfig):
-    port: int = 11434
-
-
-async def get_adapter_impl(config: RemoteProviderConfig, _deps):
+async def get_adapter_impl(config: OllamaImplConfig, _deps):
     from .ollama import OllamaInferenceAdapter
 
     impl = OllamaInferenceAdapter(config.url)