Plugin Support

.......... [ZBX-21388] updated read logic to continue reading until required body length is read

* commit 'db252f0c3ec29f5d1b788c4c922ff9ca28bf1fd7':
  .......... [ZBX-21388] updated minor version
  .......... [ZBX-21388] improved read logic and changed to be constant between all reads
  .......... [ZBX-21388] added resizing for read tmp slices
  .......... [ZBX-21388] updated read logic to continue reading until required body length is read