New msgpack extensions, extended connection options, bug fixes

[goodwise]

• Added 3 new msgpack extensions: UUID, Datetime, Decimal
• Connection object accepts all options of net.createConnection()
• Extended readme documentation
• Supports new Tarantool 3.0 iproto
• New nonWritableHostPolicy and related options, which improves a high availability capability without any 3rd parties
• Ability to disable the offline queue
• Fixed bug with int32 numbers when it was encoded as floating. Use method packInteger() to solve this
• selectCb() now also accepts spaceId and indexId as their String names, not only their IDs