add LongParticles (uint64_t) to type detection

Author: joeljonsson

pyapr/io/io_api.py

@@ -122,6 +122,8 @@ def initialize_particles_type(typestr):
         return pyapr.FloatParticles()
     if typestr == 'uint8':
         return pyapr.ByteParticles()
+    if typestr == 'uint64':
+        return pyapr.LongParticles()
 
     print('deduced datatype {} is currently not supported - returning None'.format(typestr))
     return None