restructure maps dir, fix imports

pythonbpf/maps/maps.py

@@ -0,0 +1,35 @@
+class HashMap:
+    def __init__(self, key, value, max_entries):
+        self.key = key
+        self.value = value
+        self.max_entries = max_entries
+        self.entries = {}
+
+    def lookup(self, key):
+        if key in self.entries:
+            return self.entries[key]
+        else:
+            return None
+
+    def delete(self, key):
+        if key in self.entries:
+            del self.entries[key]
+        else:
+            raise KeyError(f"Key {key} not found in map")
+
+    # TODO: define the flags that can be added
+    def update(self, key, value, flags=None):
+        if key in self.entries:
+            self.entries[key] = value
+        else:
+            raise KeyError(f"Key {key} not found in map")
+
+
+class PerfEventArray:
+    def __init__(self, key_size, value_size):
+        self.key_type = key_size
+        self.value_type = value_size
+        self.entries = {}
+
+    def output(self, data):
+        pass  # Placeholder for output method