Set membership (IN, contains) not working for numeric types

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in FindQuery.resolve_value() the case for Operators.IN and Operators.NOT_IN is not considered.

• result is syntax error
• recommend having an else: raise ValueError on this sort of case statement code

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Related concern: how do I search for a range of numeric values?

• doing field >= 200 and field < 213 works, but is done as:

  NUMERIC {200.000000 <= @kind <= inf} NUMERIC {-inf <= @kind <= 213.000000}

• when I can do it manually and get it explained as:

  NUMERIC {200.000000 <= @kind <= 213.000000}

Maybe there is no difference in execute time.