make _num_or_seq_of_num() more complete

Author: DanielGoldfarb

src/mplfinance/_helpers.py

@@ -71,9 +71,9 @@ def _list_of_dict(x):
     return isinstance(x,list) and all([isinstance(item,dict) for item in x])
 
 def _num_or_seq_of_num(value):
-    return ( isinstance(value,(int,float))  or
+    return ( isinstance(value,(int,float,np.integer,np.floating))  or
              (isinstance(value,(list,tuple,np.ndarray)) and
-              all([isinstance(v,(int,float)) for v in value]))
+             all([isinstance(v,(int,float,np.integer,np.floating)) for v in value]))
            )
 
 def roundTime(dt=None, roundTo=60):