Implement redis memory backend.

scripts/main.py

@@ -2,6 +2,7 @@ import json
 import random
 import commands as cmd
 from memory.pinecone import PineconeMemory
+from memory.redismem import RedisMemory
 import data
 import chat
 from colorama import Fore, Style
@@ -283,8 +284,11 @@ user_input = "Determine which next command to use, and respond using the format
 
 # Initialize memory and make sure it is empty.
 # this is particularly important for indexing and referencing pinecone memory
-memory = PineconeMemory(cfg)
-memory.clear()
+if cfg.memory_backend == "pinecone":
+    memory = PineconeMemory(cfg)
+    memory.clear()
+else:
+    memory = RedisMemory(cfg)
 
 print('Using memory of type: ' + memory.__class__.__name__)