SearchOperation for filtering

Each field type requires a distinct filtering operation sent by the frontend.

It's crucial to consider this when dealing with microservices.

Here are the standard field types with their respective filtering methods.

Type	Filtration
input	.contains
date	.greaterOrEqualThan .lessOrEqualThan
dateTime	.greaterOrEqualThan .lessOrEqualThan
dateTimeWithSeconds	.greaterOrEqualThan .lessOrEqualThan
number	.equals
percent	.equals
hidden	-
text	.contains
radio	.equalsOneOf
checkbox	.specified=true/false
money	.equals
dictionary	.equalsOneOf
fileUpload	.contains
pickList	.contains
inlinePickList	.contains
hint	-
multifield	.equals
multivalueHover	.equalsOneOf
multivalue	.equalsOneOf
multipleSelect	.equalsOneOf