Feat: Optimace CalDB requests

@ahmedk @haufs Number of requests to the calibration DB is significantly reduced.

cal_tools/cal_tools/ana_tools.py

@@ -135,6 +135,26 @@ def recursively_save_dict_contents_to_group(h5file, path, dic):
             raise ValueError('Cannot save %s type.' % type(item))
 
 
+def list_runner(*args, **kwargs):
+    """
+    Combine several lists to list of dictionary or list of lists
+    Each dictionary containa a set of elements, one from each list
+    """
+
+    params = list(map(tuple, args)) * kwargs.get('repeat', 1)
+    possible_params = [[]]
+    for param in params:
+        possible_params = [x + [y] for x in possible_params for y in param]
+
+    names = kwargs.get('names', None)
+    if names:
+        d_possible_params = []
+        for par in possible_params:
+            d_possible_params.append(dict(zip(names, par)))
+        return d_possible_params
+    return possible_params
+
+
 def combine_constants(ctimes_a, ctimes_b):
     """
     Combine two numpy arrays of timestamp