New Features

Environment options

Set system environment as global options.

• VSR_CUSTOM_PAIR_AGGR_MEM: set to 1 to enable aggressive memory allocation in custom pairs parser. May use for large data to test/infer.
• VSR_SEQ_LOADER: set to 1 to enable sequence loader for test/infer. Bypass "OSError: Too many open files".
• VSR_LAZY_LOAD: set to 1 to enable lazy load in loading datasets. Saving start up time.