Merge branch fix_2gb_failure_on_windows (used in core release 1.2.1) to master#27

ImplOfAnImpl merged 3 commits into

mastermintlayer/lmdb-rs-mintlayer:masterfrom

fix_2gb_failure_on_windowsmintlayer/lmdb-rs-mintlayer:fix_2gb_failure_on_windowsCopy head branch name to clipboard