Adding ecl cdc vars

bb2etp.py

@@ -37,6 +37,8 @@ class BeambackgroundMetadata:
     run: int = 0
     bucket: str = 0
     date: str = 0
+    n_cdc_hits: float = 0
+    n_out_of_time_crystals: float = 0
     beam_energy: str = None
     qualitiy: bool = None
     global_tags: List[str] = field(default_factory=list)