Fix modules callback return.
Fix modules callback return.

When a modules callback returns we should return that status, not always return
ERROR_SUCCESS, because if the module callback failed for whatever reason we
should honor that.

wxsBSD/yara,hillu/yara,plusvic/yara,VirusTotal/yara,plusvic/yara,wxsBSD/yara,hillu/yara,rednaga/yara,tanium/yara,plusvic/yara,rednaga/yara,cblichmann/yara,wxsBSD/yara,cblichmann/yara,pombredanne/yara,cblichmann/yara,cblichmann/yara,wxsBSD/yara,hillu/yara,rednaga/yara,VirusTotal/yara,tanium/yara,pombredanne/yara,cblichmann/yara,pombredanne/yara,VirusTotal/yara,plusvic/yara,tanium/yara,wxsBSD/yara,VirusTotal/yara,hillu/yara,plusvic/yara,VirusTotal/yara,pombredanne/yara,pombredanne/yara,hillu/yara