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/namespace_test/NamespaceA/NamespaceB/StructInNestedNS.kt

@@ -0,0 +1,32 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+
+package NamespaceA.NamespaceB
+
+import java.nio.*
+import kotlin.math.sign
+import com.google.flatbuffers.*
+
+@Suppress("unused")
+@ExperimentalUnsignedTypes
+class StructInNestedNS : Struct() {
+
+    fun __init(_i: Int, _bb: ByteBuffer)  {
+        __reset(_i, _bb)
+    }
+    fun __assign(_i: Int, _bb: ByteBuffer) : StructInNestedNS {
+        __init(_i, _bb)
+        return this
+    }
+    val a : Int get() = bb.getInt(bb_pos + 0)
+    fun mutateA(a: Int) : ByteBuffer = bb.putInt(bb_pos + 0, a)
+    val b : Int get() = bb.getInt(bb_pos + 4)
+    fun mutateB(b: Int) : ByteBuffer = bb.putInt(bb_pos + 4, b)
+    companion object {
+        fun createStructInNestedNS(builder: FlatBufferBuilder, a: Int, b: Int) : Int {
+            builder.prep(4, 8)
+            builder.putInt(b)
+            builder.putInt(a)
+            return builder.offset()
+        }
+    }
+}