feat(pr: issue-380): update code to dotnet core 3.1 lts#496

live-dev999 merged 2 commits intoO2-Bionics:devO2-Bionics/O2NextGen:devfrom

live-dev999:live-dev999/feature/upgrade-dotnetcore/3_1_lts/issue380live-dev999/O2NextGen:live-dev999/feature/upgrade-dotnetcore/3_1_lts/issue380Copy head branch name to clipboard