The eos shared module should prefer to use explicit task arguments over
arguments provided through the provider. This fixes a problem where
that was not the case
Adds a new argument `provider` to the eos shared module and updates the
eos doc fragment. This commit includes some additional minor fixes and
code refactors for naming conventions. The `provider` argument allows the
shared module arguments to be passed as a dict object instead of having
to pass each argument invididually.
This adds a shared module for communicating with Arista EOS devices over
SSH (cli) or JSON-RPC (eapi). This modules replaces the eapi.py module
previously added to module_utils. This commit includes a documentation
fragment that describes the eos common arguments
