add more Tests of Hypotheses

[avouros]

Currently (version 2.0.0) the software is using Friedman's test to find similarity between two animal groups.

Disadvantage: Friedman's test requires two equal animal groups, in case the one group has more animals than the other one then certain animals need to be excluded in order for the two groups to become equal. Having two equal groups is rare, and excluding animals is not the best option.

Solution: Add T test, one-way ANOVA, two-way ANOVA. Let the user to decide which test to run

[avouros]

Non-parametric tests are required.

[avouros]

Version 4+ : raw classification results are extracted automatically in case the user wishes to use other tests of hypothesis.