Add first version of protection manager

freqtrade/plugins/protections/__init__.py

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+# flake8: noqa: F401
+from freqtrade.plugins.protections.iprotection import IProtection

freqtrade/plugins/protections/iprotection.py

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+
+import logging
+from abc import ABC, abstractmethod
+from typing import Any, Dict
+
+
+logger = logging.getLogger(__name__)
+
+
+class IProtection(ABC):
+
+    def __init__(self, config: Dict[str, Any]) -> None:
+        self._config = config
+
+    @property
+    def name(self) -> str:
+        return self.__class__.__name__
+
+    @abstractmethod
+    def short_desc(self) -> str:
+        """
+        Short method description - used for startup-messages
+        -> Please overwrite in subclasses
+        """