PyrateLimiter V3 release

[vutran1710]

Improvements & features

Phase I

• Much improved performance (better algorithm, better rate observations, very fast on consuming data)
• Better software design: much simpler, more extensible and easier to implement custom/extra logic without hacking around
• Out-of-the-box workable with both async & sync methods
• Decorator ready (both async & sync)
• Delay processing
• RedisAsyncBucket
• Multithreaded test
• Creating bucket at run time
• Bucket leak background-task
• Docs
• Changelog
• Release

Phase II

• Dynamic changing rate-limit for bucket during run time
• External rates store
• FileLock for SQLite
• Multi-process testing
• DynamoDB

Phase III

• Context
• Negative weight

Performance

Inserting 10k items to a single bucket, using different backends - running synchronouly with a for-loop

# InMemoryBucket
Performance test: insert 10k items 0.17364001274108887(secs)

# RedisBucket
Performance test: insert 10k items 5.8455188274383545(secs)

# SQLiteBucket
Performance test: insert 10k items 3.9313011169433594(secs)