Like or Not Like - that's where the question

New `Comparison::LIKE` and `Comparison::NOTLIKE` as alternative solution for #45 :dancer: 

Support next wildcard characters:
`%` - any character(s), any amount
`_` - any character, only one
`\%` - escape for `%`
`\_` - escape for `_`
in PostgreSQL, it is case sensitive. in MySQL, it depends on the field collation (case insensitive collactions will match in a case insensitive way)