Introduce RateLimiterResilienceStrategy

[martintmk]

The issue or feature being addressed

Closes #1086

Details on the issue fix or feature implementation

The Polly.RateLimiting adopts the .NET Rate Limiting APIs for Polly scenarios.

• It exposes the AddRateLimiter extension methods for ResiliencePipelineBuilder.
• It exposes the AddConcurrencyLimiter convenience extension methods for ResiliencePipelineBuilder.
• It exposes the RateLimiterRejectedException to notify the caller that the operation was rate limited.

Example:

// Convenience extension method for ConcurrencyLimiter
builder.AddConcurrencyLimiter(
    new ConcurrencyLimiterOptions
    {
        PermitLimit = 10,
        QueueLimit = 10
    },
    () => Console.WriteLine("Rate limiter rejected!"));

// Convenience extension method
builder.AddRateLimiter(
    new ConcurrencyLimiter(new ConcurrencyLimiterOptions
    {
        PermitLimit = 10,
        QueueLimit = 10
    }),
    onRejected => onRejected.Add(() => Console.WriteLine("Rate limiter rejected!")));

// Add rate limiter using the RateLimiterStrategyOptions
builder.AddRateLimiter(new RateLimiterStrategyOptions
{
    RateLimiter = new ConcurrencyLimiter(new ConcurrencyLimiterOptions
    {
        PermitLimit = 10,
        QueueLimit = 10
    }),
    OnRejected = new OnRateLimiterRejectedEvent().Add(() => Console.WriteLine("Rate limiter rejected!"))
});

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• I have included unit tests for the issue/feature
• I have successfully run a local build

[codecov-commenter]

Codecov Report

Merging #1103 (d8fc102) into main (2627c45) will increase coverage by 0.73%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##             main    #1103      +/-   ##
==========================================
+ Coverage   76.96%   77.69%   +0.73%     
==========================================
  Files         191      199       +8     
  Lines        4597     4748     +151     
  Branches      838      846       +8     
==========================================
+ Hits         3538     3689     +151     
  Misses        854      854              
  Partials      205      205              

Flag	Coverage Δ
linux	77.69% <100.00%> (+0.73%)	⬆️
macos	77.69% <100.00%> (+0.73%)	⬆️
windows	77.69% <100.00%> (+0.73%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../Retry/RetryResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)
src/Polly.Core/Strategy/SimpleEvent.cs	100.00% <ø> (ø)
...eout/TimeoutResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)
src/Polly.Core/Utils/SynchronousExecutionHelper.cs	100.00% <100.00%> (ø)
...lly.RateLimiting/OnRateLimiterRejectedArguments.cs	100.00% <100.00%> (ø)
...c/Polly.RateLimiting/OnRateLimiterRejectedEvent.cs	100.00% <100.00%> (ø)
...Polly.RateLimiting/RateLimiterRejectedException.cs	100.00% <100.00%> (ø)
...olly.RateLimiting/RateLimiterResilienceStrategy.cs	100.00% <100.00%> (ø)
.../RateLimiterResilienceStrategyBuilderExtensions.cs	100.00% <100.00%> (ø)
...c/Polly.RateLimiting/RateLimiterStrategyOptions.cs	100.00% <100.00%> (ø)

... and 6 files with indirect coverage changes

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