Make consistent module resource locations (#246)

* Rename FallbackConfigs directory to Resources

* Move bert-vocab.txt to Resources directory

* Add comment about fallback configuration file locations

Author: mattt

Package.swift

@@ -30,7 +30,7 @@ let package = Package(
         ),
         .executableTarget(name: "HubCLI", dependencies: ["Hub", .product(name: "ArgumentParser", package: "swift-argument-parser")]),
         .target(name: "Generation", dependencies: ["Tokenizers"]),
-        .target(name: "Hub", resources: [.process("FallbackConfigs")], swiftSettings: swiftSettings),
+        .target(name: "Hub", resources: [.process("Resources")], swiftSettings: swiftSettings),
         .target(name: "Models", dependencies: ["Tokenizers", "Generation"]),
         .target(name: "Tokenizers", dependencies: ["Hub", .product(name: "Jinja", package: "Jinja")]),
         .testTarget(name: "GenerationTests", dependencies: ["Generation"]),

Sources/Hub/Hub.swift

@@ -240,6 +240,7 @@ public final class LanguageModelConfigurationFromHub: Sendable {
     }
 
     static func fallbackTokenizerConfig(for modelType: String) -> Config? {
+        // Fallback tokenizer configuration files are located in the `Sources/Hub/Resources` directory
         guard let url = Bundle.module.url(forResource: "\(modelType)_tokenizer_config", withExtension: "json") else {
             return nil
         }