Added fun_version and env_all as opcodes and some fixes in httpserver. (0.37.30)

examples/env_all.fun

@@ -0,0 +1,28 @@
+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2025 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ * Added: 2025-12-28
+ */
+
+all_env = env_all()
+keys = keys(all_env)
+
+print("Number of environment variables: " + to_string(len(keys)))
+print("--------------------------------------------------")
+
+i = 0
+while i < len(keys)
+  key = keys[i]
+  print(key + "=" + all_env[key])
+  i = i + 1
+
+/* Possible output:
+Depends on your environment.
+*/