Enhance Task list search

[zcrt]

Is your feature request related to a problem? Please describe.
Currently one has to know the exact object name to search on

Describe the solution you'd like

• Allow search on characteristics (e.g. example.com instead of Website|internet|<<IP>>|tcp|80|http|internet|example.com
• Allow regex search
• Allow search through all columns (optionally using a query syntax, e.g. boefje: masscan

[underdarknl]

@jpbruinsslot can you make an inventory on what options we have for this? Jobs are in a postgresDB, so adding 'partial-text' queries should be doable within the SQL I'd say?

[jpbruinsslot]

Work has been done on the scheduler to support these kind of queries by extending the api with new filtering options (#1699)