initial lrwp: cacti_device, cacti_graph with :create action
update docs
set valid values for graph_type
handle --input-fields for add_graphs
handle graph_type ds (disk used space for all filesystems)
FC017: LWRP does not notify when updated
add cacti_tree lrwp
fix some rubocop warnings
add whyrun support
simplify: move params setup to separate function
add support for checking existence of nodes and graphs
keep original resource attributes; convert then only when needed to invoke cli
move exists? checks to providers out of cli module
avoid duplicate cacti_tree resources
implement tree_exists as much possible
can't detect reliably if ds type graph exists
use @new_resource everywhere, new_resource is attr_accessor
Merge branch 'lrwp' of github.com:glensc/chef-cookbook-cacti into glensc-lrwp
do not pass empty port
document cacti_dir attribute