Add tutorial notebook for accessing VBN raw data

[bjhardcastle]

Overview:

Add a notebook to demonstrate how to access raw data for the Visual Behavior Neuropixels project.
Covers three different methods:

1. browsing bucket with a website
2. using AWS CLI tool to download files
3. using boto3 to stream files

Type of Fix:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing
  functionality to not work as expected)
• Documentation Change

Changes:

• adds one .ipynb with embedded images

Validation:

Manually tested code with

• aws-cli/1.18.69
• Python/3.8.10
• Linux/6.1.155-176.282.amzn2023.x86_64
• botocore/1.16.19

Checklist

• My code follows
  Allen Institute Contribution Guidelines
• My code is unit tested and does not decrease test coverage
• I have performed a self review of my own code
• My code is well-documented, and the docstrings conform to
  Numpy Standards
• I have updated the documentation of the repository where
  appropriate
• The header on my commit includes the issue number
• My Pull Request has the latest AllenSDK release candidate branch
  rc/x.y.z as its merge target
• My code passes all AllenSDK tests

Notes:

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