Refactor packaging

Hi all,

This MR aims to improve the packaging of the toolbox. In general, deleting globals tend to have unwanted consequences. For instance, I have encountered import problems during unit testing. The refactoring has a similar outcome as the previous implementation, which is clean namespace. This is due to the __all__ being listed to each modules, as suggested here.

I also have listed all the required libraries for the Toolbox. One can now freely install the library on a local environment with pip install -e ".[maxwell]". The maxwell tag is a side effect of a direction that I would like to suggest. That is, the Toolbox codes can be used elsewhere; maybe in conjunction with another library, maybe as a Karabo device.

Please feel free to let me know your thoughts :)

@lleguy @mercurio @mercadil @teichman

src/toolbox_scs/detectors/__init__.py

-from .xgm import (
-    get_xgm, calibrate_xgm)
-from .digitizers import (
-    get_peaks, get_tim_peaks, get_laser_peaks, get_digitizer_peaks,
-    check_peak_params)
-from .bam_detectors import get_bam
-from .pes import get_pes_tof, get_pes_params
-from .dssc_data import (
-    save_xarray, load_xarray, get_data_formatted, save_attributes_h5)
-from .dssc_misc import (
-    load_dssc_info, create_dssc_bins, quickmask_DSSC_ASIC,
-    get_xgm_formatted, load_mask)
-from .dssc_processing import (
-    process_dssc_data)
-from .dssc import (
-    DSSCBinner, DSSCFormatter)
-from .azimuthal_integrator import (
-    AzimuthalIntegrator, AzimuthalIntegratorDSSC)
+from .azimuthal_integrator import *
+from .bam_detectors import *
+from .digitizers import *
+from .dssc import *
+from .dssc_data import *
+from .dssc_misc import *
+from .dssc_processing import *
+from .pes import *
+from .xgm import *
 
 __all__ = (
-    # Functions
-    "get_xgm",
-    "calibrate_xgm",
-    "get_peaks",
-    "get_tim_peaks",
-    "get_laser_peaks",
-    "get_digitizer_peaks",
-    "check_peak_params",
-    "get_bam",
-    "get_pes_tof",
-    "get_pes_params",
-    "save_xarray",
-    "load_xarray",
-    "get_data_formatted",
-    "save_attributes_h5",
-    "load_dssc_info",
-    "create_dssc_bins",
-    "quickmask_DSSC_ASIC",
-    "get_xgm_formatted",
-    "load_mask",
-    "calc_xgm_frame_indices",
-    "process_dssc_data",
-    # Classes
-    "DSSCBinner",
-    "DSSCFormatter",
-    "AzimuthalIntegrator",
-    "AzimuthalIntegratorDSSC",
-    # Variables
+    azimuthal_integrator.__all__
+    + bam_detectors.__all__
+    + digitizers.__all__
+    + dssc.__all__
+    + dssc_data.__all__
+    + dssc_misc.__all__
+    + dssc_processing.__all__
+    + pes.__all__
+    + xgm.__all__
 )
-
-
-# -----------------------------------------------------------------------------
-# Clean namespace
-#     -> certain filenames we dont need in the namespace. Especially not those
-#     that are marked as private by using an underscore (_<filename>.py).
-# -----------------------------------------------------------------------------
-
-clean_ns = [
-    # filenames
-    'DSSC_bkp',
-    'DSSC1module',
-    'dssc',
-    'dssc_routines',
-    'dssc_processing',
-    'dssc_data',
-    'dssc_misc',
-    'dssc_plot',
-    'azimuthal_integrator',
-    'FastCCD',
-    'xgm',
-    'digitizers',
-    'bam_detectors',
-    'pes'
-    ]
-
-
-for name in dir():
-    if name in clean_ns:
-        del globals()[name]
-
-del globals()['clean_ns']
-del globals()['name']