Merge branch 'feat/elk_stack' of https://github.com/HBPMedical/portal-backend into feat/186_experiment_refactor

1) Removed Models entity.
2) CRUD for experiments.
3) Database cleanup.
4) Useless entities removed.
5) Implemented service layer.
6) DAOs - DTOs cleanup.

Dev/251 refactor logging

1) Disabled spring boot framework logs.
2) Added 2 logs at every endpoint, when entering and returning, with useful information.
3) Unified the logs output.

Experiments ownership

Updated getExperiment so an experiment can be accessed in two cases: 1. If it is shared to everyone 2. If it is not shared only the owner can access it. If none of the above is the case it will return a UNAUTHORIZED Http Status.

Adding config file to disable algorithms.

Bug fix for running Galaxy workflows.

descriptive_stats_v2 method