ITL: Enhanced SMART attributes monitoring plugin check configuration to more parameters

[freaknils]

Added more parameters for check_smart_attributes.

[oxzi]

First, thanks a lot for your contribution!

Please sign the CLA as the bot indicated and comment here that you did so. Afterwards, we can proceed with your PR.

I have added a few single comments for improvements. Please address them as you see fit.

Since I am not familiar with the check_smart_attributes check, I could only perform a "vibe check" and compare your changes against the Perl code upstream. It seems you have added all options from the current master, thanks.

One task left would be to list the new options in the documentation. Please update the table in the the ./doc/10-icinga-template-library.md file.

icinga2/doc/10-icinga-template-library.md

Lines 3028 to 3038 in bc7debe

	#### smart-attributes <a id="plugin-contrib-command-smart-attributes"></a>
	The [check_smart_attributes](https://github.com/thomas-krenn/check_smart_attributes) plugin
	uses the `smartctl` binary to monitor SMART values of SSDs and HDDs.
	Custom variables passed as [command parameters](03-monitoring-basics.md#command-passing-parameters):
	Name | Description
	--------------------------------|-----------------------------------------------------------------------
	smart_attributes_config_path | **Required.** Path to the smart attributes config file (e.g. check_smartdb.json).
	smart_attributes_device | **Required.** Device name (e.g. /dev/sda) to monitor.

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[freaknils]

CLA is now verified

[bobapple]

@cla-bot check

[oxzi]

Thanks again. In general, LGTM.

Please also add yourself to the AUTHORS file:

--- a/AUTHORS
+++ b/AUTHORS
@@ -203,6 +203,7 @@ Nicolas Limage <[email protected]>
 Nicolas Rodriguez <[email protected]>
 Nicole Lang <[email protected]>
 Niflou <[email protected]>
+Nils Czernia <[email protected]>
 Noah Hilverling <[email protected]>
 Obihörnchen <[email protected]>
 Oleg Artenii <[email protected]>

[oxzi]

Thanks again.