Implemented main basically

single_ursim_control/program_loader.py

@@ -0,0 +1,14 @@
+from program_schema import ProgramSchema, SUPPORTED_PROGRAM_STRUCTURE_VERSION
+import requests
+
+
+def load_program(url: str) -> dict:
+    headers = {
+        'Accept': 'application/json'
+    }
+    r = requests.get(url, headers=headers)
+    r.raise_for_status()
+
+    program_schema = ProgramSchema(many=False)
+
+    return program_schema.load(r.json())  # Might raise marshmallow exceptions