Fix | Adding disposable stack temp ref struct and use (dotnet#1980)

[5.1.1] Fix | NullReferenceException in GetBytesAsync (dotnet#1964)

Backport 3.1.x Fix | TDS RPC error on large queries in SqlCommand.Exe…

…cuteReaderAsync (dotnet#1939)

[3.1.2] Release Notes M.D.S 3.1.2 (dotnet#1914)

[3.1.2] Release Notes M.D.S 3.1.2
dotnet#1914

Release notes v5.1.0 (dotnet#1893)

Release notes v5.1.0-preview2 (dotnet#1832)

Release notes v5.1.0-preview1 (dotnet#1788)

[5.0.1] Fix | Default UTF8 collation conflict (dotnet#1799)

[Hotfix 4.1.1] | Release notes (dotnet#1761)

[Hotfix 4.0.2] | Release notes (dotnet#1760)