This refactors the ios_config module to use the network module added
in 2.2 to simplify common network functions
new features
* add src, dest arguments for working with config
* results now return flag if the config was saved or not
* adds append argument for updating the dest file (when dest is used)
This commit address a bug in the ios_config module when using the
match: strict argument. When the argument is used, the module will
compare the configuration block same as match: exact which is not the
intended behavior. This commit updates the behavior to propertly handle
the strict argument.
