## feature/build

* add box_tuple_data_offset function (return offset of the messagePack encoded data from the begin of the tuple)
* export functions/simbols. Exported:
    * port_destroy
    * cord_slab_cache
    * obuf_create
    * obuf_destroy
    * sql_prepare
    * sql_stmt_finalize
    * sql_unprepare
    * sql_stmt_query_str
    * sql_stmt_calculate_id
    * sql_bind_list_decode
    * decNumberToString
    * decimal_precision
    * decimal_scale
    * decimal_zero
    * decimal_is_int
    * strtodec
    * decimal_from_double
    * decimal_from_int64
    * decimal_from_uint64
    * decimal_to_int64
    * decimal_to_uint64
    * decimal_compare
    * decimal_round
    * decimal_floor
    * decimal_trim
    * decimal_rescale
    * decimal_remainder
    * decimal_abs
    * decimal_minus
    * decimal_add
    * decimal_sub
    * decimal_mul
    * decimal_div
    * decimal_log10
    * decimal_ln
    * decimal_pow
    * decimal_exp
    * decimal_sqrt
    * decimal_len
    * decimal_pack
    * CTID_DECIMAL
    * tuple_field_raw_by_full_path
    * box_tuple_data_offset
    * ipc_value_delete
    * TIMEOUT_INFINITY
    * ipc_value_new
    * fiber_channel_delete
    * fiber_channel_close
    * fiber_channel_put_msg_timeout
    * fiber_channel_get_msg_timeout
    * fiber_channel_has_readers
    * fiber_channel_has_writers
    * fiber_channel_new
