modify shim to accept the modules as base64
Add mod_data routine
Pass module args to the shim
change the shim args for module loading
Fix stack trace in write_odules
Check the validity of the entry before commiting the arg
It works! salt-ssh now autodeploys modules.

It happens in the shim, so it is inline with module type changes
without requireing a heavy deployment of a new thin tarball
lint fix
Merge pull request #15539 from thatch45/ssh_module_deploy

Ssh module deploy