Merge branch '16-dataset-class-plotting-functionality' into 'master'

Plotting functionality

Closes #16

See merge request !17

docs/architecture.md

 In this project, we decided to use Object-Oriented Programming (OOP) for the dataset class, in order to expose some basic functions for clients to use. The Dataset class is defined in `src/Dataset.py`.
 
-For the plotting functions, we decided to define several commonly-used plotting functions in a separate file `src/Plotting.py`.
+For the plotting functions, we decided to define several commonly-used plotting functions in a separate file `src/Plotting.py`.
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