[FND-3] Release 7.0.0

[lucassus]

This pull request introduces a major version update for the Advanced Billing SDK, along with dependency updates, minor code cleanups, and documentation adjustments. The most significant changes include updating the SDK version, modifying the userAgent string, and upgrading a dependency version. Additionally, there are minor formatting changes and adjustments to optional parameter descriptions in several methods.

Major Version Update and Dependency Changes:

• Updated the SDK version from 6.1.0.0 to 7.0.0.0 in AdvancedBilling.Standard.csproj and the userAgent string in AdvancedBillingClient.cs. [1] [2]
• Upgraded the APIMatic.Core dependency version range from [0.4.6, 0.5.0) to [0.4.10, 0.5.0) in AdvancedBilling.Standard.csproj.

Code Cleanup:

• Removed unnecessary blank lines in BasicAuthManager.cs. [1] [2]

Documentation and Parameter Adjustments:

• Adjusted optional parameter descriptions (e.g., body) in multiple methods across various controllers, such as AdvanceInvoiceController, ComponentPricePointsController, and ComponentsController. These changes remove the "Example: ." text, leaving just "Optional parameter: .". [1] [2] [3]

These changes collectively ensure the SDK is up-to-date, with improved maintainability and cleaner documentation.