Outlier detection (#111)

* Implemented outlier detection benchmarks

We add 3 benchmarks on outlier detection. The container for this benchmark is already uploaded. 
Those experiments are created by @renesass. 

* Update 'HowToAddBenchmarks'

Co-authored-by: Philipp Müller <[email protected]>
Co-authored-by: Katharina Eggensperger <[email protected]>

Author: 3 people

.gitignore

@@ -130,4 +130,9 @@ dmypy.json
 
 # Misc
 .idea/
-experiments/
+experiments/
+.DS_Store
+
+# Vagrant
+.vagrant
+Vagrantfile

extra_requirements/outlier_detection.json

@@ -0,0 +1,3 @@
+{
+  "outlier_detection": ["torch==1.9.0", "pytorch_lightning==1.3.8", "scikit-learn==0.24.2"]
+}