Add Fixed and Sliding Window RateLimiters + PartitionedRateLimiter.Create

[BrennanConroy]

Backport of #67677 and #68087 to release/7.0-preview4

Customer Impact

We added new APIs for Sliding Window and Fixed Window rate limiters as well as PartitionedRateLimiter.Create for the default experience of creating a PartitionedRateLimiter.

We would love to start getting customer feedback on these core APIs. As well as make the new Rate Limiting Middleware in ASP.NET Core that is shipping in preview4 easier to use, which the PartitionedRateLimiter.Create API helps with.

Testing

There is a good base set of test cases that are common among all the rate limiter implementations. As well as a suite of new tests for the PartitionedRateLimiter.

Risk

Low. These APIs are in their own new assembly and shipped as standalone packages today. No other area in Runtime currently use them and the APIs used by ASP.NET Core were not modified.

[ghost]

Note regarding the new-api-needs-documentation label:

This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, to please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.

[ghost]

Tagging subscribers to this area: @mangod9
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Issue Details

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Backport of #67677 and #68087 to release/7.0-preview4

Customer Impact

We added new APIs for Sliding Window and Fixed Window rate limiters as well as PartitionedRateLimiter.Create for the default experience of creating a PartitionedRateLimiter.

We would love to start getting customer feedback on these core APIs. As well as make the new Rate Limiting Middleware in ASP.NET Core that is shipping in preview4 easier to use, which the PartitionedRateLimiter.Create API helps with.

Testing

There is a good base set of test cases that are common among all the rate limiter implementations. As well as a suite of new tests for the PartitionedRateLimiter.

Risk

Low. These APIs are in their own new assembly and shipped as standalone packages today. No other area in Runtime currently use them and the APIs used by ASP.NET Core were not modified.

Author:	BrennanConroy
Assignees:	-
Labels:	Servicing-consider, area-System.Threading
Milestone:	7.0.0

[BrennanConroy]

Preview4 approved over email.

[carlossanlop]

Unelated test failure coming from System.IO.Compression.Tests.ZipFile_Unix.UnixCreateSetsPermissionsInExternalAttributes was disabled a week ago in main, but not in the release/7.0-preview4 branch: #68293

[BrennanConroy]

@carlossanlop Are you able to merge?