* Testing commands over various nxapi levels of cipher and ssl strengths.
* Reworked nxos nxapi ssl/tlv transport testing
* Added additional nxos nxapi httpapi local transport test suite
* Added meta: end_play to nxos nxapi transports task to
prevent execution unless nxos_ssl is defined.
* Refactored nxos nxapi tls and cipher options testing
* Removed blank line
* Renamed variable ssl to the more appropriate ciphers
* After each transport perumation test reset nxapi on the switch to
ensure no previous configuration is still present on the next test.
* 43651: Removed unnecessary changes to nxos_nxapi & removed hard-coded
nxapi port numbers.
