* add load_config() for loading a set of configuration commands
* add load_candidate() function for loading a candidate config
* updates shared module to provide NetworKModule instead of get_module
* fixes Cli transport implementation for 2.2 refactor
* updates ios documentation fragments with new options
A few of the docs fragments have the available choices for some params
defined as "BOOLEANS". Because choices accepts a list, it treats
"BOOLEANS" as an iterable and then generates a list composed of each
letter.
Instead, define the available choices as a list of `['yes', 'no']`,
as is common in most other modules.
New argument `provider` added to the ios shared module that provides
the ability to pass all of the common ios arguments as a dict. This commit
includes some minor bugfixes and refactoring of names. It also includes
udpates to the ios documentation fragment for the new argument
This update refactor the ios shared module to use the new shell shared
library instead of issh and cli. It also adds the ios documentation
fragment to be used when building ios based modules.
John R Barker
Peter Sprygada
Peter Sprygada
Patrick Ogenstad
Nathaniel Case
David Wittman