v0.2.1

Main changes

• Batching fully works!
• Output DRRs have shape [b c h w]
• Initialization of parameters are different now
• You can use .to() to move DRR to devices and dtypes

What's Changed

• Update camera.py by @eigenvivek in #109
• Adopt PyTorch conventions and best practices by @eigenvivek in #116
• Update plotting function by @eigenvivek in #118

Full Changelog: v0.1.5...v0.2.1