More "like" syntax

[darkain]

clike: [text]%[text]
alike: %[text]%[text]%
lclike: %[text]%[text]
rclike: [text]%[text]%
rawlike: any input passed unfiltered

there really isn't an elegant way to have underscore single-character matching, so adding rawlike to handle those where the app itself can build the LIKE matching string.

[darkain]

Also test more advanced escaping, such as the escape \ character itself