function sctCkResults = lick_ckblkaprnc_fetch(hSys, sCkType)
Checks all blocks found in system <hSys> for adherance to block appearance settings. Required appearance rules and libraries exempt from testing are retrieved from the current check configuration.
Check result structure <sctCkRes> contains members <jExclLibs>, a java.util.HashSet with the libraries excluded from checks, and <jBad>, a java.util.ArrayList containing all blocks offending the selected rule.
Check type <sCkType> selects the rule to be checked (all from MAB 5.0) and might be one out of: - 'na_0004' - 'db_0142' - 'jc_0604'