add swift flatbuffers

flatbuffers/Documentation.docc/Resources/code/swift/swift_code_5.swift

@@ -0,0 +1,22 @@
+import FlatBuffers
+import Foundation
+
+func run() {
+  // create a `FlatBufferBuilder`, which will be used to serialize objects
+  let builder = FlatBufferBuilder(initialSize: 1024)
+
+  let weapon1Name = builder.create(string: "Sword")
+  let weapon2Name = builder.create(string: "Axe")
+
+  // start creating the weapon by calling startWeapon
+  let weapon1Start = Weapon.startWeapon(&builder)
+  Weapon.add(name: weapon1Name, &builder)
+  Weapon.add(damage: 3, &builder)
+  // end the object by passing the start point for the weapon 1
+  let sword = Weapon.endWeapon(&builder, start: weapon1Start)
+
+  let weapon2Start = Weapon.startWeapon(&builder)
+  Weapon.add(name: weapon2Name, &builder)
+  Weapon.add(damage: 5, &builder)
+  let axe = Weapon.endWeapon(&builder, start: weapon2Start)
+}