adds code for accessing DAG nodes whose MAT nodes are condensed
updated OnMove functions for the callback to uncondense MAT nodes correctly for leafset computations
added MAT condensing to optimize_dag_direct
adds SampleId storage to the DAG protobuf IO: we use the condensed_leaves field in the protobuf to store the SampleId attribute for leaf nodes (closes #64 )
updated the disambiguated reference sequence computation in viral_datasets_snake
This branch has several small changes to larch:
OnMovefunctions for the callback to uncondense MAT nodes correctly for leafset computationsoptimize_dag_directSampleIdstorage to the DAG protobuf IO: we use thecondensed_leavesfield in the protobuf to store theSampleIdattribute for leaf nodes (closes #64 )viral_datasets_snake