[ssh-wg] Salt-SSH python mismatch/match

[Ch3LL]

• [ ] make sure if python versions match we will simply use the system python and Salt-SSH will run as it always has.

• [ ] If the python versions do not match and an alternative option is not set, when Salt-SSH is run a message will be printed out asking the user if they want to copy over the binary, and informing them of the other alternative options pre_flight and ssh_ext_alternatives.

• [ ] Add tests for changes above