Werk #13025: make 'cmk --snmptranslate' more robust

Before this werk it was possible that cmk --snmptranslate would crash if the oids to translate where to long.

The oids where fed to snmptranslate as arguments and there is a limit for the number of characters. If this limit was exceeded by too long oids, cmkd --snmptranslate would stop without an error and needed to be killed.

With this fix the oids are fed to snmptranslate via stdin. This reduced the time to process a walk with 137379 lines from 3 minutes 35 seconds to 2.4 seconds.

As the general speed is now much better, the status output was removed.

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