feat(RES-58): Add new parameter "bundle" (#19)

Add bundle parameter to define if resource should be load from Bundle.main (app) or Bundle.module (SPM package)

Reviewed-on: #19

Sources/ToolCore/AssetBundle.swift

@@ -0,0 +1,26 @@
+//
+//  AssetBundle.swift
+//  ResgenSwift
+//
+//  Created by Thibaut Schmitt on 21/07/2025.
+//
+
+import ArgumentParser
+
+package enum AssetBundle: String, CustomStringConvertible, ExpressibleByArgument {
+
+    case main
+    case module
+
+    // MARK: - CustomStringConvertible
+
+    package var description: String {
+        switch self {
+        case .main:
+            "main"
+
+        case .module:
+            "module"
+        }
+    }
+}