Package and document analysis code

[uniqueg]

Bring all code required to create figures into a form that can be re-used and reproduced.

• [x] Prepare Conda environment file with all dependencies
• [ ] Organize code
• [ ] Document how to run the code
• [ ] Publish

[balajtimate]

The repo for testing can now be found here: https://github.com/zavolanlab/test_htsinfer