1.0 release planning

[chrislearn]

salvo is almost 5 years old, and I hope to release version 1.0 before it turns 5.
For version 1.0, I will provide a 100-day maintenance cycle. Personally, I only use the latest version on git, so the maintenance of stable versions is voluntary labor.

If there is a company project that relies on salvo and expects salvo to provide longer maintenance for the 1.0 official version, you can consider making a donation. For every $10 I get, I will extend the maintenance period by 1 day, up to a maximum of 2 years.

• Add reqwest client to proxy middleware #726
• oapi cannot declare and obtain files well #692
• Find a way to rename OpenAPI object and operation globally #619
• Update quinn to 0.11 and remove old rustls #744
• Improve documentation and official website #746
• OAPI : Short FlexNamer doesn't respect schemas name #833
• tls-rustls-reload example not reloading periodically #809