Add Swift Package Manager support

.gitignore

@@ -18,6 +18,9 @@ DerivedData
 *.hmap
 *.ipa
 
+# Swift Package Manager
+.swiftpm
+
 # Bundler
 .bundle
 

DMScrollBar/DMScrollBarConfiguration.swift

@@ -1,3 +1,5 @@
+import UIKit
+
 extension DMScrollBar {
     public struct Configuration: Equatable {
         /// Indicates if the scrollbar should always be visible

DMScrollBar/ScrollBarIndicator.swift

@@ -1,3 +1,5 @@
+import UIKit
+
 final class ScrollBarIndicator: UIView {
     private var indicatorImageWidthConstraint: NSLayoutConstraint?
     private var indicatorImageHeightConstraint: NSLayoutConstraint?

DMScrollBar/ScrollBarInfoView.swift

@@ -1,3 +1,5 @@
+import UIKit
+
 final class ScrollBarInfoView: UIView {
     private let offsetLabel = UILabel()
 

DMScrollBar/Utils/Configuration+Utils.swift

@@ -1,3 +1,5 @@
+import UIKit
+
 extension DMScrollBar.Configuration.RoundedCorners.Corner {
     var cornerMask: CACornerMask {
         switch self {

DMScrollBar/Utils/ConvenienceFunctions.swift

@@ -1,4 +1,4 @@
-import Foundation
+import UIKit
 
 func interval<T: Comparable>(_ minimum: T, _ num: T, _ maximum: T) -> T {
     return min(maximum, max(minimum, num))

DMScrollBar/Utils/Sequence+Utils.swift

@@ -1,3 +1,5 @@
+import UIKit
+
 extension Sequence where Element == DMScrollBar.Configuration.RoundedCorners.Corner {
     var cornerMask: CACornerMask {
         CACornerMask(map(\.cornerMask))

Package.swift

@@ -0,0 +1,19 @@
+// swift-tools-version:5.7
+import PackageDescription
+
+let package = Package(
+    name: "DMScrollBar",
+    platforms: [.iOS(.v14)],
+    products: [
+        .library(
+            name: "DMScrollBar",
+            targets: ["DMScrollBar"]
+        )
+    ],
+    targets: [
+        .target(
+            name: "DMScrollBar",
+            path: "DMScrollBar"
+        )
+    ]
+)