method: RESEPT - env for deps only

[uniqueg]

Partly addresses, but does not fix #14

• Provides Conda environment for all dependencies of method RESEPT
• The method itself must be separately deployed by cloning the repository, as it is not packaged and therefore not included in the environment
• The PR does not include code to run the method
• For initial testing of the environment, function 1 of the demo provided by the method developers was partially ran on an 8-core x86_64 Intel i7-8650U CPU; no errors had occurred by the time it was manually terminated after ~45 min.
• Important: The Conda environment defined in this PR is configured to run on a CPU-only machine; to support GPUs, environment.yml has to be modified to set the appropriate CUDA version, as described in the environment file itself (untested)