v2.0.0

Migrated from webpack to microbundle which made output bundle smaller by more than 40%.
Started distributing the package in 5 different bundle versions for different usages and purposes.

BREAKING CHANGES 💥

• Because of migration from webpack to microbundle there might be some differences in the way the output bundle behaves. Because of that - the major version of the package was raised.
• Jest package was upgraded which required the raise of NodeJS version in our travis CI configuration. Only because of that, as we do not test the package against older versions of NodeJS than Node@10, we drop the support for latter. From now one our package supports only NodeJS environments version 10 and above.