Exposed harmonydata/harmony#75 to the API

[AlexNikic]

Description

This is a quick PR to give a wrapper for the load_instrument_from_url function which has been recently added to the Python library.

Fixes #27

Type of change

• New feature (non-breaking change which adds functionality)

Testing

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

All current tests pass.

Test Configuration

• Library version: 1.0.7
• OS: Windows 11
• Toolchain: Python 3.13, PyCharm

Checklist

• My PR is for one issue, rather than for multiple unrelated fixes.
• My code follows the style guidelines of this project. I have applied a Linter (recommended: Pycharm's code formatter) to make my whitespace consistent with the rest of the project.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[jaydugad]

@AlexNikic thanks for adding the wrapper and updating the tests.