[Transformation] Added file for deployment transformation, defines input...

[Transformation] Added file for deployment transformation, defines input values and sets metadata properties accordingly

src/finn/transformation/fpgadataflow/make_deployment.py

+from finn.transformation import Transformation
+
+
+class DeployToPYNQ(Transformation):
+    """Collects all necessary files for deployment and copies them to the PYNQ board.
+    Expects information about PYNQ board to make scp possible:
+    * ip address of board
+    * username and password for board
+    * target directory where the files are stored on the board"""
+
+    def __init__(self, ip, username, password, target_dir):
+        super().__init__()
+        self.ip = ip
+        self.username = username
+        self.password = password
+        self.target_dir = target_dir
+
+    def apply(self, model):
+        model.set_metadata_prop("pynq_ip", self.ip)
+        model.set_metadata_prop("pynq_username", self.username)
+        model.set_metadata_prop("pynq_password", self.password)
+        model.set_metadata_prop("pynq_target_dir", self.target_dir)
+
+        return (model, False)