fix a whole lot of missing includes

minecraft/java/include/java/Arrays.h

@@ -1,6 +1,10 @@
 #pragma once
 
 #include <vector>
+#include <cassert>
+#include <cstdint>
+
+class Biome;
 
 class Arrays {
 public:

minecraft/java/include/java/InputOutputStream/OutputStream.h

@@ -1,5 +1,8 @@
 #pragma once
 
+#include <vector>
+#include <cstdint>
+
 // 4J Stu - Represents Java standard lib abstract
 
 class OutputStream {

minecraft/java/src/InputOutputStream/FileOutputStream.cpp

@@ -1,6 +1,12 @@
+#include <cassert>
+#include <cstdint>
+#include <vector>
+
 #include "java/File.h"
 #include "java/InputOutputStream/FileOutputStream.h"
 
+#include "../../../Minecraft.World/ConsoleHelpers/StringHelpers.h" // 4jcraft TODO
+
 // Creates a file output stream to write to the file represented by the
 // specified File object. A new FileDescriptor object is created to represent
 // this file connection. First, if there is a security manager, its checkWrite

minecraft/java/src/Random.cpp

@@ -1,3 +1,5 @@
+#include <cassert>
+#include <cmath>
 #include <chrono>
 #include <cstdint>  // for int64_t