Add detailed documentation and references to the terms and conditions of VB e-commerce

[keriat]

To make sure the library is easy-to-use and it's fit some industry-grade requirements 🤘 it definitely needs:

• Detailed documentation (e.g. wiki);
• Examples of how to work with it;
• Some community-call to build an open-source list of libraries, develop and maintain it for the good of the society;
• references to the bank-specific services;
• contacts of the commercial and technical support teams of the bank (need some help with bank-connection, please advised if any);
• links to the VB's website (like this one);
• some creative touch of the Fruitware's Design Department to re-born this repository from some internal-use piece of code into the industry-grade product;

👨‍💻 Will release it in next couple of weeks (related milestone attached)

[keriat]

Hey, @alexminza!👋

If you have newest documentation from bank and can share it with us (you can use [email protected] to avoid breaking any NDAs) — it would be much appreciated.