added sample

Author: Chris Warren-Smith

llama/samples/chat.bas

@@ -0,0 +1,12 @@
+
+const llama = llm.llama("qwen.gguf", 1024)
+
+print llama.generate("Write a BASIC program", 256, 0.2)
+
+print llama.chat("Hello")
+print llama.chat("Write a BASIC program to draw a cat")
+print llama.chat("Now add color")
+
+llama.reset()
+
+print llama.chat("Who are you?")