Is your feature request related to a problem? Please describe.
Setting preferred algorithms for use by client is not possible.

Describe the solution you'd like
Add optional parameters to clients to allow preferred algorithms to be set.

Describe alternatives you've considered
N/A

Additional context
Something like:

ParallelSSHClient(<..>,     kex_algorithms=['diffie-hellman-group-exchange-sha1'],     encryption_algorithms=['aes256-cbc'],    mac_algorithms=['hmac-sha1'],)