CoolGraph 0.0.1

First release of CoolGraph:

• quick start in one line of code
• good quality of base models, comparable to state of the art
• heterogeneous graph support
• the best model architecture automatic search via Optuna
• tracking experiments with MLFlow
• user could define the targets count and target weights in the loss function
• estimating batch size and neighbourhood sampling sizes for the first and second hop via graph metrics calculation