output: sub-module support for other log api's

output: sub-module support for other log api's

Packets:
void OutputRegisterPacketSubModule(const char *parent_name, char *name, char *conf_name,
    OutputCtx *(*InitFunc)(ConfNode *, OutputCtx *),
    PacketLogger LogFunc, PacketLogCondition ConditionFunc);

Files:
void OutputRegisterFileSubModule(const char *parent_name, char *name, char *conf_name,
    OutputCtx *(*InitFunc)(ConfNode *, OutputCtx *), FileLogger FileLogFunc);

Filedata:
void OutputRegisterFiledataSubModule(const char *parent_name, char *name, char *conf_name,
    OutputCtx *(*InitFunc)(ConfNode *, OutputCtx *), FiledataLogger FiledataLogFunc);