add no cache and ideal cache,

move printing cache reports to util file

app/cache/nocache.py

@@ -0,0 +1,15 @@
+from .cache import Cache
+
+class NoCache(Cache):
+
+    def __init__(self, limit: int):
+        pass
+
+    def get(self, key):
+        return None
+
+    def put(self, key, val):
+        return False
+    
+    def invalidate(self, key):
+        return False