Update check-smart.rb

Adding options to start /usr/bin/smartctl with sudo
Create nvidia-metrics.rb

plugin to check nvidia card temperature, memory and fan speed
ignore bundled files
ignore vendor
Update check-smart.rb
Update nvidia-metrics.rb

use two spaces indentation
ignore whole .bundle
LVM snaps causes device name conversion to break

When using LVM snapshots, the lsblk command will return multiple values; we only need the first one.
added ini argument parsing for security.

Added explanation of how the ini feature works
fix for 0.13 and cleanup
Merge branch 'master' of https://github.com/sensu/sensu-community-plugins
added doc
oops, trailing whitespace removed
fix
fix logic to match what is in the documentation; an alert should be sent if values are lower than what is passed via config
Remove extraneous $PERCENT modification

This line returns an empty string on my machine. I am not sure what the original author's intent was, but it seems unnecessary to have it there.
Do not divide by zero
Update opsgenie-heartbeat.rb for new OpsGenie Heartbeat API
$PERCENT is a float so use "bc" to compare it
refactor and parse output output for process checks