tarantool / tarantool-java / 758

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Pull #223

travis-ci

types: ResultSet API for TarantoolClient

This commit introduces a new API to handle TarantoolClient result. The
concept is similar to the JDBC ResultSet in terms of a getting the data
using rows ans columns. Instead of a guessing-style processing the
result via List<?>, TarantoolResultSet offers set of typed methods to
retrieve the data or get an error if the result cannot be represented as
the designated type.

Latter case requires to declare formal rules of a casting between the
types. In scope of this commit it is supported 11 standard types and
conversions between each other. These types are byte, short, int, long,
float, double, boolean, BigInteger, BigDecimal, String, and byte[].

Closes: #211

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