Updated ParamsExtensions to include System.Globalization for
culture-invariant formatting of double values. This change
ensures proper SQL parameterization by avoiding issues with
decimal separators across different cultures.
- Added `System.Data` using directive in `EnvelopeCreateReadSQL.cs`.
- Updated SQL command strings to use parameter placeholders.
- Corrected method name from `CreateParmas` to `CreateParams` and added output parameter `@OutUid`.
- Made similar updates in `EnvelopeReceiverAddReadSQL.cs`.
- Introduced `ParamsExtensions` class with `ToSqlParam` method for converting .NET objects to SQL-safe parameter strings.