added experiment chat mode for experimenting in the same session

[deepakachu-aiplanet]

No description provided.

[deepakachu-aiplanet]

feature overview:

• After the agent is created, these things happen:
  • The temp directory is created that is stored in .tmp/openagi, this is where the local chromadb db is stored until the program dies.
  • Since the session id does not change in experiment mode, the subsequent runs can access the temp db.
  • The ltm also provides context for subsequent sessions, so improvement can be seen real time
• The description is fixed for all sessions but the query can be varied.
  

[tarun-aiplanet]

this will run the planner again?