add nscoding snippet, for NSCoding protocol methods

nscoding.m

@@ -0,0 +1,22 @@
+// NSCoding protocol methods
+// Placeholders for NSCoding protocol methods
+// 
+// Platform: All
+// Language: Objective-C
+// Completion Scope: Class Implementation
+
+#pragma mark - NSCoding
+
+- (instancetype)initWithCoder:(NSCoder *)aDecoder
+{
+    self = [super init];
+    if (self) {
+        <#var#> = [aDecoder decodeObjectForKey:<#(NSString *)#>];
+    }
+    return self;
+}
+
+- (void)encodeWithCoder:(NSCoder *)aCoder
+{
+    [aCoder encodeObject:<#var#> forKey:<#(NSString *)#>]
+}