handle if assistant_message_gen and assistant_message_gen!=assistant_message_start, replace final output tag with unspaced (gen) version if exists

kcpp_adapters/Jamba.json

@@ -0,0 +1,9 @@
+{
+  "system_start": "<|bom|><|system|> ",
+  "system_end": "<|eom|>",
+  "user_start": "<|bom|><|user|> ",
+  "user_end": "<|eom|>",
+  "assistant_start": "<|bom|><|assistant|> ",
+  "assistant_gen": "<|bom|><|assistant|>",
+  "assistant_end": "<|eom|>"
+}

kcpp_adapters/Mistral-NonTekken.json

@@ -3,6 +3,7 @@
   "system_end": "",
   "user_start": "[INST] ",
   "user_end": "",
-  "assistant_start": "[/INST]",
+  "assistant_start": "[/INST] ",
+  "assistant_gen": "[/INST]",
   "assistant_end": "</s>"
 }

kcpp_adapters/RWKV-World.json

@@ -3,6 +3,7 @@
   "system_end": "\n\n",
   "user_start": "User: ",
   "user_end": "\n\n",
-  "assistant_start": "Assistant:",
+  "assistant_start": "Assistant: ",
+  "assistant_gen": "Assistant:",
   "assistant_end": "\n\n"
 }