v2.8.1: Fix closing cursor inside QueryContext

fix query context issue

v2.8.0: use buffered network read

fix regression in DBMS_AQ.DEQUEUE_ARRAY and ARRAYS

v2.7.26: Fix LOB leak + return driver.ErrBadConn when connection is not opened

return driver.ErrBadConn instead of ora-6413 when connection is not o…

…pened

v2.7.25: read oracle 23c wallet

update readme file + deprecate TimeStamp and TimeStampTZ types

v2.7.24: fix refcursor reading inside fetch + bulkinsert null type

fix refcursor reading inside fetch + bulkinsert nil type

v2.7.23: Update BFile + Improve Bulk-Insert

update readme file

v2.7.22: fix reading summary object from oracle server 10.2 + fix named parameter inside select

fix reading summary object from oracle server 10.2 + fix named parame…

…ter inside select

v2.7.21: update column/parameter info with new fields

add more fields to parameter/columns

v2.7.20: add new feature to add session parameters + bug fixes

update readme file

v2.7.19: Fix issue #445 by add more packet space for NNE

Merge pull request #445 from bobvawter/fix_nne_size

go-ora/v2/network: Reserve additional packet space for NNE