v3.0.1

--length-sd enabled for multi-pass sequencing in WGS simulation.

Newly added QSHMM-ONT-HQ.model and ERRHMM-ONT-HQ.model.
OSHMM-ONT-HQ.model and ERRHMM-ONT-HQ.model are recommended when
simulating a read set with an average accuracy of 90% or higher.