2.19.0

Improvements

• Add the RetryDelay class and its subclasses(ConstantRetryDelay, LinearRetryDelay, ExponentialRetryDelay).
• Change RetryPolicy ctor signature to accept the RetryDelay parameter.
• Add the RetryDelay parameter to the RetryPolicy.InfiniteRetries method overloads.
• Modify RetryPolicy.Handle(Async)<T> methods to use the RetryDelay.
• Add DefaultRetryProcessor.Retry method overloads and RetryInfinite method to handle Action with RetryDelay parameter.
• Add DefaultRetryProcessor.Retry<T> method overloads and RetryInfinite<T> method to handle Func<T> with RetryDelay parameter.
• Add DefaultRetryProcessor.RetryAsync method overloads and RetryInfiniteAsync method to handle Func<CancellationToken, Task> with RetryDelay parameter.
• Add DefaultRetryProcessor.RetryAsync<T> method overloads and RetryInfiniteAsync<T> method to handle Func<CancellationToken, Task<T>> with RetryDelay parameter.
• Add internal DelayProvider class.
• Refactoring to use the DelayProvider class in the DelayErrorProcessor class.
• Introduce RetryProcessingErrorInfo class, add ProcessingErrorInfo.CurrentContext property, deprecate ProcessingErrorInfo.CurrentRetryCount property.

Small changes

• DRY refactoring and new tests for RetryPolicy.WithWait method overloads.

Docs changes

• Add doc comments to IRetryProcessor class.
• Add doc comments to RetryCountInfoOptions class and RetryCountInfo struct.
• Update 'RetryPolicy' README Chapter.
• Update 'TryCatch' README Chapter.