Updated file location for SPM sources

Package.swift

@@ -1,20 +1,21 @@
 // swift-tools-version:5.3
-// The swift-tools-version declares the minimum version of Swift required to build this package.
+
 import PackageDescription
 
 let package = Package(
     name: "SwiftUIcon",
     products: [
-        .library(
-            name: "SwiftUIcon",
-            targets: ["SwiftUIcon"]),
-    ],
-    dependencies: [
+        .library(name: "SwiftUIcon", targets: ["SwiftUIcon"]),
     ],
+    dependencies: [],
     targets: [
         .target(
             name: "SwiftUIcon",
-            dependencies: [],
-            path: "Icon"),
+            exclude: [
+                "main.swift",
+                "IconGenerator.swift"
+            ],
+            sources: ["Icon+PreviewHelpers.swift"]
+        ),
     ]
 )

build-script.sh

@@ -17,9 +17,9 @@ trap "rm -f $TMPFILE" EXIT
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
 
-HELPER="$SCRIPT_DIR/Icon/Icon+PreviewHelpers.swift"
-GENERATOR="$SCRIPT_DIR/IconGenerator/IconGenerator.swift"
-MAIN="$SCRIPT_DIR/IconGenerator/main.swift"
+HELPER="$SCRIPT_DIR/Sources/SwiftUIcon/Icon+PreviewHelpers.swift"
+GENERATOR="$SCRIPT_DIR/Sources/SwiftUIcon/IconGenerator.swift"
+MAIN="$SCRIPT_DIR/Sources/SwiftUIcon/main.swift"
 
 # Concatenate all files and remove import that is most likely in the input file
 cat $SCRIPT_INPUT_FILE_0 $HELPER $GENERATOR $MAIN | grep -v "import\sSwiftUIcon" > $TMPFILE