Added common UIApplicationDelegate methods & new Mark Snippet (#28)

* Added Swift UIApplicationDelegate methods snippet.

Even though Xcode fills the AppDelegate with necessary delegate methods during a new project creation, I thought why not include this as a snippet which might help and come in handy sometimes.

* Elegant mark code snippet added

* Added screenshot image for elegant mark

* Updated Readme file for uiapplicationdelegate and elegant mark

Readme.md

@@ -60,6 +60,8 @@ swift-iba                            Create IBAction method stub
 swift-uicollectionviewdatasource     UICollectionViewDataSource snippet for Swift
 swift-singleton                      Singleton pattern for Swift
 swift-uitableviewdatasource          UITableViewDataSource snippet for Swift
+swift-uiapplicationdelegate          Commonly used app life cycle methods
+swift-elegantmark                    Decorates mark statements and makes it neat when looking through items in File Jump Bar
 ```
 
 

swift-elegantmark.codesnippet

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDECodeSnippetCompletionPrefix</key>
+	<string>swift-elegantmark</string>
+	<key>IDECodeSnippetCompletionScopes</key>
+	<array>
+		<string>All</string>
+	</array>
+	<key>IDECodeSnippetContents</key>
+	<string>
+////////////////////////////////////////////////////////////////
+//MARK:-
+//MARK:&lt;#Section#&gt;
+//MARK:-
+////////////////////////////////////////////////////////////////
+</string>
+	<key>IDECodeSnippetIdentifier</key>
+	<string>76C4B4B4-1F7D-41D8-9CE2-0E4E36C668D0</string>
+	<key>IDECodeSnippetLanguage</key>
+	<string>Xcode.SourceCodeLanguage.Generic</string>
+	<key>IDECodeSnippetSummary</key>
+	<string>Decorates mark statements and makes it neat when looking through items in File Jump Bar</string>
+	<key>IDECodeSnippetTitle</key>
+	<string>Elegant Mark</string>
+	<key>IDECodeSnippetUserSnippet</key>
+	<true/>
+	<key>IDECodeSnippetVersion</key>
+	<integer>2</integer>
+</dict>
+</plist>

swift-uiapplicationdelegate.codesnippet

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDECodeSnippetCompletionPrefix</key>
+	<string>swift-uiapplicationdelegate</string>
+	<key>IDECodeSnippetCompletionScopes</key>
+	<array>
+		<string>ClassImplementation</string>
+	</array>
+	<key>IDECodeSnippetContents</key>
+	<string>func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -&gt; Bool {
+
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+
+    }</string>
+	<key>IDECodeSnippetIdentifier</key>
+	<string>CB10B10E-410C-4668-8B94-4322438AE77B</string>
+	<key>IDECodeSnippetLanguage</key>
+	<string>Xcode.SourceCodeLanguage.Swift</string>
+	<key>IDECodeSnippetSummary</key>
+	<string>Commonly used app life cycle methods</string>
+	<key>IDECodeSnippetTitle</key>
+	<string>Swift - UIApplication Delegate methods</string>
+	<key>IDECodeSnippetUserSnippet</key>
+	<true/>
+	<key>IDECodeSnippetVersion</key>
+	<integer>0</integer>
+</dict>
+</plist>