Example PR

[sclaw]

Description

This PR adds the start of a data pre-processing class. The class is able to load DEMs and depth rasters into memory and organize them into arrays useful for training the GPR. Additionally, a toy subclass in included to provide sample data for validating the model pipeline. A minimal Jupyter notebook is included to visualize the toy terrain.

Note that no Google-style docstrings have been included because later refactors may change which functions are user-facing.

Fixes #1

Type of change

Please delete options that are not relevant.

• 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)
• This change requires a documentation update

Checklist:

• I have performed a self-review of my own code
• My code has docstrings for all functions. User-level docstrings use Google-style docstrings
• My code uses type-hinting for all functions
• Black formatting has been applied
• I have commented my code, particularly in hard-to-understand areas
• I have made changes to the documentation (when appropriate)
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works (when appropriate)
• New and existing tests pass locally with my changes