Dev/stuff from pyctbgui (#273)

Matterhorn10 Transform 
some other Transformations from pyctbGUI 
added method get_reading_mode for easier error handling in decoders 


## TODO: 

- proper error handling for all other decoders 
- proper documentation for all other decoders 
- refactoring all other decoders to store hard coded values in a Struct
ChipSpecification

python/tests/test_RawMasterFile.py

@@ -0,0 +1,14 @@
+
+
+import pytest
+from aare import RawMasterFile, ReadoutMode, DetectorType
+
+
+@pytest.mark.withdata
+def test_read_rawfile_quad_eiger_and_compare_to_numpy(test_data_path): 
+    
+    file_name = test_data_path/'raw/jungfrau/jungfrau_single_master_0.json'
+   
+    f = RawMasterFile(file_name)
+    assert(f.reading_mode == ReadoutMode.UNKNOWN)
+    assert(f.detector_type == DetectorType.Jungfrau)