add opcua json transformer to init file (rtdip#754)

Signed-off-by: Chloe Ching <[email protected]>

src/sdk/python/rtdip_sdk/pipelines/transformers/__init__.py

@@ -19,6 +19,7 @@
 from .spark.ssip_pi_binary_file_to_pcdm import *
 from .spark.ssip_pi_binary_json_to_pcdm import *
 from .spark.aio_json_to_pcdm import *
+from .spark.opcua_json_to_pcdm import *
 from .spark.iso import *
 from .spark.edgex_opcua_json_to_pcdm import *
 from .spark.ecmwf.nc_extractbase_to_weather_data_model import *