VOLDEV-34: Parse [[wikilinks]] in Forum/Wall log actions

Follow-up to #2224

@Grunny @michalroszka @hakubo
I don't think these two would need to be passed as `rawParams` and can be escaped as normal can't they? If so, you can chain with `params` as much as needed, i.e. `wfMessage( 'some-message' )->params( $paramOne, $paramTwo )->rawParams( $safeHtmlParamThree, $safeHTMLParamFour )->params( $paramFive )->escaped();`