Remove Async suffix for dynamic async controller actions (both for web api and asp.net core mvc)

[hikalkan]

see #2441 (comment)

It's enabled by default. If you define an async method, like GetPersonAsync() in app service, jquery proxies will access it without Async postfix.

This can be a breaking change if have already actions with Async postfix and using them from javascript side. To disable (and return to the previous case), in PreInitialize of your module:

Configuration.Modules.AbpWebCommon().ApiProxyScripting.RemoveAsyncPostfixOnProxyGeneration = false;