Add zstandard compression support for project export

gns3server/utils/zipfile_zstd/_patcher.py

@@ -0,0 +1,20 @@
+import functools
+
+
+class patch:
+
+    originals = {}
+
+    def __init__(self, host, name):
+        self.host = host
+        self.name = name
+
+    def __call__(self, func):
+        original = getattr(self.host, self.name)
+        self.originals[self.name] = original
+
+        functools.update_wrapper(func, original)
+        setattr(self.host, self.name, func)
+
+        return func
+