Lfview-resources-files

Minor changes
- Relax validation on array `content_length` - rather than requiring this to equal the expected value from `dtype` and `shape`, it must be less than or equal to the value. See 1

Initial Release
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`lfview-resources-files` includes Array and Image classes to be used by the [LF View](https://lfview.com) API [Python client](https://github.com/seequent/lfview-api-client). Documentation for these resources is available on [readthedocs](https://lfview-resources-files.readthedocs.io/en/latest/).

**Note**: The LF View API and all associated Python client libraries are in pre-release. They are subject to change at any time, and backwards compatibility is not guaranteed.