`cuda.core`: Bump version to 0.1.0

[leofang]

Two places

• https://github.com/NVIDIA/cuda-python/blob/main/cuda_core/cuda/core/_version.py
• https://github.com/NVIDIA/cuda-python/blob/main/cuda_core/docs/versions.json

[vzhurba01]

Blocked on PR #165. As soon as it's submitted I can updated both places together.