Update citrix_state.py - added vmtoolsstate config

[Constey]

Thank you for your interest in contributing to Checkmk!
Consider looking into Readme regarding process details.

General information

When monitoring citrix terminalserver with the citrix instance state it can often occour that the vmtoolstate is unknown, in special after reboots. this produces currently a lot of unknown errors - so we need to whitelist this as the "issue" has no affect and the systems are fully functional - it's just an citrix issue.

Configuration of the registrationstate was possible, but vmtoolstate not.
States are:
"vmtoolsstate": {
"NotPresent": 2,
"Unknown": 3,
"NotStarted": 1,
"Running": 0,
},

Bug reports

no cmk bug

Proposed changes

Just add the functionality to configure the vmtoolsstate via wato rules.

What is the expected behavior?
configuration of vmtoolsstate
What is the observed behavior?
the outcome of vmtoolsstate is not configurable

[github-actions]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[Constey]

I have read the CLA Document and I hereby sign the CLA or my organization already has a signed CLA.

[Constey]

recheck

[mo-ki]

Hi @Constey
Thank you for your contribution. I think this is a nice improvement. Can I ask you to make the defaults the defaults, if you know what I mean? We try to choose the defaults of the rules to be the same as the values that would apply without any rules configured (if remotely reasonable).
Anyway: we are tracking this :-)