Search feature improvements

[kyungmin]

• Add ability to search on transaction's appears_on_statement_as Add ability to search on transaction's appears_on_statement_as balanced-dashboard#1534
• Add ability to search by metadata fields Add ability to search by metadata fields balanced-dashboard#576
• Add ability to search logs by IP address Add ability to filter by IP address to Logs view balanced-dashboard#1525
• Partial matches on customer names Partial matches on customer names balanced-dashboard#1452