Add support for loading resources from multiple locations

[Copilot]

Changes ResourcesPath property to string[] to support loading JSON localization resources from multiple directories.

Changes

• JsonLocalizationOptions: Changed ResourcesPath from string to string[] (breaking change for v4.0.0)
• JsonResourceManager:
  • Updated to accept string[] of paths and search all locations for resources
  • Merges resources from all paths (earlier paths take precedence on key conflicts)
  • Sets up file watchers for all paths to support hot-reload
  • Tracks loaded files to avoid redundant I/O

Usage

services.AddJsonLocalization(options =>
{
    options.ResourcesPath = new[] { "Resources", "SharedResources", "PluginResources" };
});

Resources are loaded in order: first path takes precedence on key conflicts.

• Fixes Ability to load resources from multiple locations #30

Original prompt

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This section details on the original issue you should resolve

<issue_title>Ability to load resources from multiple locations</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Ability to load resources from multiple locations #30

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[hishamco]

@copilot we could change ResourcesPath instead of introducing a new property

[Copilot]

Do you mean changing ResourcesPath from a single string to a collection (like IList<string>), so users can specify multiple paths directly? That would be a breaking change for existing users since it changes the type. Could you clarify the preferred approach?

[hishamco]

Use string[] instead as the return type. Don't worry about the breaking change, this will be included as part of the 4.0.0 release

[hishamco]

@copilot, apply the changes based on my above comment

[Copilot]

Changed ResourcesPath from string to string[] in commit ec0bb44. Removed the separate AdditionalResourcesPaths property.