Env variables to configure multi-threading and results dir location

[staskh]

A few optional environment variables are available for all pipelines:

• AUTOMORPH_DATA : the directory where the Results are stored. If not defined, the "Results" subdirectory is created in the current directory. If AUTOMORPH_DATA defined outside of source directory (for example, /tmp/AutoMorh ) source directory can be made read-only - for deployment inside of AWS Lambda.
• NUM_WORKERS : defines a number of workers for the dataloader. The default is 8. If NUM_WORKERS is set to 0, the dataloader will be single-threaded.