add flatbuffers

commit 6da1cf79d90eb242e7da5318241d42279a3df3ba
Author: Max Burke <max@urbanlogiq.com>
Date:   Sun Jan 19 14:47:28 2020 -0800

    [rust] Add use declarations to Rust-generated bindings for imported FB definitions (#5645)

    * Bugfix for Rust generation of union fields named with language keywords

flatbuffers/tests/MyGame/Example/Referrable.cs

@@ -0,0 +1,65 @@
+// <auto-generated>
+//  automatically generated by the FlatBuffers compiler, do not modify
+// </auto-generated>
+
+namespace MyGame.Example
+{
+
+using global::System;
+using global::FlatBuffers;
+
+public struct Referrable : IFlatbufferObject
+{
+  private Table __p;
+  public ByteBuffer ByteBuffer { get { return __p.bb; } }
+  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_1_11_1(); }
+  public static Referrable GetRootAsReferrable(ByteBuffer _bb) { return GetRootAsReferrable(_bb, new Referrable()); }
+  public static Referrable GetRootAsReferrable(ByteBuffer _bb, Referrable obj) { return (obj.__assign(_bb.GetInt(_bb.Position) + _bb.Position, _bb)); }
+  public void __init(int _i, ByteBuffer _bb) { __p = new Table(_i, _bb); }
+  public Referrable __assign(int _i, ByteBuffer _bb) { __init(_i, _bb); return this; }
+
+  public ulong Id { get { int o = __p.__offset(4); return o != 0 ? __p.bb.GetUlong(o + __p.bb_pos) : (ulong)0; } }
+  public bool MutateId(ulong id) { int o = __p.__offset(4); if (o != 0) { __p.bb.PutUlong(o + __p.bb_pos, id); return true; } else { return false; } }
+
+  public static Offset<MyGame.Example.Referrable> CreateReferrable(FlatBufferBuilder builder,
+      ulong id = 0) {
+    builder.StartTable(1);
+    Referrable.AddId(builder, id);
+    return Referrable.EndReferrable(builder);
+  }
+
+  public static void StartReferrable(FlatBufferBuilder builder) { builder.StartTable(1); }
+  public static void AddId(FlatBufferBuilder builder, ulong id) { builder.AddUlong(0, id, 0); }
+  public static Offset<MyGame.Example.Referrable> EndReferrable(FlatBufferBuilder builder) {
+    int o = builder.EndTable();
+    return new Offset<MyGame.Example.Referrable>(o);
+  }
+
+  public static VectorOffset CreateSortedVectorOfReferrable(FlatBufferBuilder builder, Offset<Referrable>[] offsets) {
+    Array.Sort(offsets, (Offset<Referrable> o1, Offset<Referrable> o2) => builder.DataBuffer.GetUlong(Table.__offset(4, o1.Value, builder.DataBuffer)).CompareTo(builder.DataBuffer.GetUlong(Table.__offset(4, o2.Value, builder.DataBuffer))));
+    return builder.CreateVectorOfTables(offsets);
+  }
+
+  public static Referrable? __lookup_by_key(int vectorLocation, ulong key, ByteBuffer bb) {
+    int span = bb.GetInt(vectorLocation - 4);
+    int start = 0;
+    while (span != 0) {
+      int middle = span / 2;
+      int tableOffset = Table.__indirect(vectorLocation + 4 * (start + middle), bb);
+      int comp = bb.GetUlong(Table.__offset(4, bb.Length - tableOffset, bb)).CompareTo(key);
+      if (comp > 0) {
+        span = middle;
+      } else if (comp < 0) {
+        middle++;
+        start += middle;
+        span -= middle;
+      } else {
+        return new Referrable().__assign(tableOffset, bb);
+      }
+    }
+    return null;
+  }
+};
+
+
+}