Add origins/condaforge Route for Consistent Conda API Structure

[yashkohli88]

Description:

This pull request addresses the need to enhance the API for Conda origins by creating a separate route for the Conda-Forge channel, thereby aligning it with the structure used for other package managers.

Key Changes:

1. New origins/condaforge Route:

• Introduced a dedicated route for the Conda-Forge channel using /origins/condaforge.
• This change ensures a consistent approach, similar to other package managers that have distinct routes for different sources.

2. Separation of Repo Access Logic:

• Extracted and refactored the code responsible for fetching channel and repo data into a new CondarepoAccess library for better separation of concerns and reusability.

3. Code Refactoring:

• Refactored existing originConda and new originCondaforge routes to use CondaRepoAccess for accessing package data.
• Improved readability and maintainability of the route handling logic.

4. Cache Improvements:

• Reused the existing cache setting for caching purposes to help improve performance by reducing redundant API calls.

5. Test Enhancements:

• Updated and added new tests to cover changes in route handling and data fetching logic to ensure stability and reliability.

Files Changed:

• app.js: Added route definition for Conda-Forge.
• lib/condaRepoAccess.js: New library for handling Conda repository access.
• routes/originConda.js: Refactored to leverage CondaRepoAccess.
• routes/originCondaforge.js: New route handler for Conda-Forge channel.
• test/lib/condaRepoAccess.js: Added unit tests for CondaRepoAccess.
• test/routes/origins.js: Updated integration tests to accommodate new and refactored routes.

Notes:

• These changes aim to enhance the API's consistency, making it easier for users to interact with different Conda channels.
• All affected tests have been updated to ensure proper coverage and functionality.

This PR is related to #1284

[qtomlinson]

_getOriginCondaRevisions is exposed on the router for testing purposes. Tests related to "Conda Origin Routes" may be better to remain in origin related tests.

[elrayle]

Really nice refactor. The descriptions in the issue and this PR made it easy to review. Thanks!