Wildcard and partial-match support in RESTful API device filters

The RESTful API filter for querying devices by attributes, such as serial number, currently requires an exact string match and does not support wildcard or partial-match patterns. This limitation causes difficulty when an attribute field contains concatenated or multi-value data, such as serial numbers for stacked switches, since the filter cannot match on a single component value within that field. This enhancement proposes adding wildcard or partial-match support to the device filter API so that users can query using a substring or pattern rather than the full exact value. This would allow customers to reliably retrieve device records through automation even when attribute fields contain composite or multi-part values, reducing the need for manual workarounds when integrating NetBrain data with external systems.