`PacketArray` represented as `PacketField`

[jmbhughes]

Issue

I noticed when doing some testing that when I created a PacketArray and then printed it that the string representation said PacketField instead of PacketArray. I don't think this was intended, but feel free to close the issue if it was.

Relevant area of code:

https://github.com/CCSDSPy/ccsdspy/blob/0d19cd9a6a146bf608b2c62e8c20e2b2bdc731bc/ccsdspy/packet_fields.py#L74

Simple example:

import ccsdspy
from ccsdspy import PacketField, PacketArray

pkt = [
  PacketField(
       name='SHCOARSE',
       data_type='uint',
       bit_length=32
  ),
  PacketArray(
       name="data",
       data_type="uint",
       bit_length=16,
       array_shape="expand",   # makes the data field expand
  ),
  PacketField(
       name="checksum",
       data_type="uint",
       bit_length=16
  ),
]
print(pkt[1])

the output is: PacketField(name='data', data_type='uint', bit_length=16, bit_offset=None, byte_order='big') instead of PacketArray(name='data', data_type='uint', bit_length=16, bit_offset=None, byte_order='big')

[jmbhughes]

I must've been running an older version of CCSDSPy or something because it appears fixed now.