FreeBSD/*BSD detection

[cederom]

I have encountered FreeBSD OS detection. Will provide a fix soon :-)

(venv37zephyr) pyocd list
0001563:CRITICAL:__main__:Unable to determinate running operation system (FreeBSD)
Traceback (most recent call last):
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pypemicro/pemicro.py", line 401, in get_pemicro_lib
    libs_list = PyPemicro.get_pemicro_lib_list(dllpath=dllpath)
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pypemicro/pemicro.py", line 142, in get_pemicro_lib_list
    lib_name = PyPemicro.get_library_name()
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pypemicro/pemicro.py", line 99, in get_library_name
    raise PEMicroException(f"Unable to determinate running operation system ({system_name})")
pypemicro.pemicro.PEMicroException: Unable to determinate running operation system (FreeBSD)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pypemicro/pemicro.py", line 419, in list_ports
    lib = PyPemicro.get_pemicro_lib()
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pypemicro/pemicro.py", line 407, in get_pemicro_lib
    raise PEMicroException(str(exc))
pypemicro.pemicro.PEMicroException: Unable to determinate running operation system (FreeBSD)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pyocd_pemicro-1.0.4-py3.7.egg/pyocd_pemicro/pemicro_probe.py", line 81, in get_all_connected_probes
    port_list = pemicro.list_ports()
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pypemicro/pemicro.py", line 421, in list_ports
    raise PEMicroException(str(exc))
pypemicro.pemicro.PEMicroException: Unable to determinate running operation system (FreeBSD)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pyocd-0.30.4.dev31-py3.7.egg/pyocd/__main__.py", line 150, in run
    status = cmd.invoke()
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pyocd-0.30.4.dev31-py3.7.egg/pyocd/subcommands/list_cmd.py", line 93, in invoke
    ConnectHelper.list_connected_probes()
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pyocd-0.30.4.dev31-py3.7.egg/pyocd/core/helpers.py", line 109, in list_connected_probes
    allProbes = ConnectHelper.get_all_connected_probes(blocking=False)
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pyocd-0.30.4.dev31-py3.7.egg/pyocd/core/helpers.py", line 82, in get_all_connected_probes
    allProbes = DebugProbeAggregator.get_all_connected_probes(unique_id=unique_id)
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pyocd-0.30.4.dev31-py3.7.egg/pyocd/probe/aggregator.py", line 64, in get_all_connected_probes
    probes += cls.get_all_connected_probes(unique_id, is_explicit)
  File "/home/x/usr/local/venv37zephyr/lib/python3.7/site-packages/pyocd_pemicro-1.0.4-py3.7.egg/pyocd_pemicro/pemicro_probe.py", line 90, in get_all_connected_probes
    raise cls._convert_exception(exc) from exc
pyocd.core.exceptions.ProbeError: Unable to determinate running operation system (FreeBSD)

[cederom]

This is a pypemicro package issue as described here nxp-mcuxpresso/pypemicro#7 solution is provided here nxp-mcuxpresso/pypemicro#8 :-)