Werk #12795: Add dashlets to display host or service states

Component	Setup
Title	Add dashlets to display host or service states
Date	Jun 30, 2021
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.1.0b1 Checkmk Enterprise (CEE), Checkmk MSP (CME)

Two new dashlets are added:

1. display the state of a single service
2. display the state of a single host

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