Base knife-edge scan analysis implementation

Hi @lleguy @mercadil,

This is an example of a base implementation, specifically the knife edge scan analysis from Laurent's tb.knife_edge. This is agnostic from xarray data format, thus this can be easily used on other means, such as on a Karabo device.

I also have found out that there could be problems with using bisect especially with repetitive elements. I use slicing instead to find the valid range.

src/toolbox_scs/misc/__init__.py

-from .bunch_pattern import (extractBunchPattern, pulsePatternInfo,
-    repRate)
-from .bunch_pattern_external import (is_sase_3, is_sase_1,
-    is_ppl, is_pulse_at)
-from .laser_utils import positionToDelay, degToRelPower
-
+from .bunch_pattern import *
+from .bunch_pattern_external import *
+from .laser_utils import *
 
 __all__ = (
-    # Functions
-    "extractBunchPattern",
-    "pulsePatternInfo",
-    "repRate",
-    "sortBAMdata",
-    "is_sase_3",
-    "is_sase_1",
-    "is_ppl",
-    "is_pulse_at",
-    "get_index_ppl",
-    "get_index_sase1",
-    "get_index_sase3",
-    "positionToDelay",
-    "degToRelPower",
-    # Classes
-    # Variables
+    bunch_pattern.__all__
+    + bunch_pattern_external.__all__
+    + laser_utils.__all__
 )