Worked on the example programs

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>
printableChars was selecting one nonprintable

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>
TCDRAIN was not enabled and therefore had some issues with imports

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>
Used PyCharm to examin code standards on packetGenerator

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>
Used PyCharm to examin code standards on rxThread and txThread

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>
Used PyCharm to examin code standards on placeholder OrionPythonModules.serial_settings

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>
Used PyCharm to examin code standards on serialData

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>
example program rs422_test.py - readtimeout will scale up with packet size

Signed-off-by: Joseph A. Lutz <CipherWizard@cipherwizard.net>