fix(BEVFusion): add docker environment

[scepter914]

Summary

This PR fix BEVFusion environment.

When install by python projects/BEVFusion/setup.py develop, error is occurred.

UnicodeDecodeError: 'utf-8' codec can't decode byte 0x9c in position 25: invalid start byte in scripts/ninja file at path: /opt/conda/lib/python3.10/site-packages/ninja-1.13.0-py3.10-linux-x86_64.egg/EGG-INFO/scripts/ninja

Strictly speaking, switching to spconv-cu120 would resolve the issue, but relying on a manual workaround isn’t ideal for a development environment.

So I add DockerFile for BEVFusion.
I think it makes easier to develop BEVFusion.

Change point

• fix(BEVFusion): add docker environment
• fix(BEVFusion): fix README

Note

I tested by local environment because I do not have the access authority for ghcr.io of TIER IV.

#ARG AWML_BASE_IMAGE="ghcr.io/tier4/autoware-ml-base:latest"
ARG AWML_BASE_IMAGE="awml"

Test performed

I confirmed docker build.