Move macaron to chi (#14293)

Use [chi](https://github.com/go-chi/chi) instead of the forked [macaron](https://gitea.com/macaron/macaron). Since macaron and chi have conflicts with session share, this big PR becomes a have-to thing. According my previous idea, we can replace macaron step by step but I'm wrong. :( Below is a list of big changes on this PR.

- [x] Define `context.ResponseWriter` interface with an implementation `context.Response`.
- [x] Use chi instead of macaron, and also a customize `Route` to wrap chi so that the router usage is similar as before.
- [x] Create different routers for `web`, `api`, `internal` and `install` so that the codes will be more clear and no magic .
- [x] Use https://github.com/unrolled/render instead of macaron's internal render
- [x] Use https://github.com/NYTimes/gziphandler instead of https://gitea.com/macaron/gzip
- [x] Use https://gitea.com/go-chi/session which is a modified version of https://gitea.com/macaron/session and removed `nodb` support since it will not be maintained. **BREAK**
- [x] Use https://gitea.com/go-chi/captcha which is a modified version of https://gitea.com/macaron/captcha
- [x] Use https://gitea.com/go-chi/cache which is a modified version of https://gitea.com/macaron/cache
- [x] Use https://gitea.com/go-chi/binding which is a modified version of https://gitea.com/macaron/binding
- [x] Use https://github.com/go-chi/cors instead of https://gitea.com/macaron/cors
- [x] Dropped https://gitea.com/macaron/i18n and make a new one in `code.gitea.io/gitea/modules/translation`
- [x] Move validation form structs from `code.gitea.io/gitea/modules/auth` to `code.gitea.io/gitea/modules/forms` to avoid dependency cycle.
- [x] Removed macaron log service because it's not need any more. **BREAK**
- [x] All form structs have to be get by `web.GetForm(ctx)` in the route function but not as a function parameter on routes definition.
- [x] Move Git HTTP protocol implementation to use routers directly.
- [x] Fix the problem that chi routes don't support trailing slash but macaron did.
- [x] `/api/v1/swagger` now will be redirect to `/api/swagger` but not render directly so that `APIContext` will not create a html render. 

Notices:
- Chi router don't support request with trailing slash
- Integration test `TestUserHeatmap` maybe mysql version related. It's failed on my macOS(mysql 5.7.29 installed via brew) but succeed on CI.

Co-authored-by: 6543 <6543@obermui.de>

docs/content/page/index.en-us.md

@@ -267,7 +267,7 @@ Windows, on architectures like amd64, i386, ARM, PowerPC, and others.
 
 ## Components
 
-* Web framework: [Macaron](http://go-macaron.com/)
+* Web framework: [Chi](http://github.com/go-chi/chi)
 * ORM: [XORM](https://xorm.io)
 * UI components:
   * [Semantic UI](http://semantic-ui.com/)

docs/content/page/index.fr-fr.md

@@ -254,7 +254,7 @@ Le but de ce projet est de fournir de la manière la plus simple, la plus rapide
 
 ## Composants
 
-* Framework web : [Macaron](http://go-macaron.com/)
+* Framework web : [Chi](http://github.com/go-chi/chi)
 * ORM: [XORM](https://xorm.io)
 * Interface graphique :
   * [Semantic UI](http://semantic-ui.com/)

docs/content/page/index.zh-cn.md

@@ -47,7 +47,7 @@ Gitea的首要目标是创建一个极易安装，运行非常快速，安装和
 
 ## 组件
 
-* Web框架： [Macaron](http://go-macaron.com/)
+* Web框架： [Chi](http://github.com/go-chi/chi)
 * ORM: [XORM](https://xorm.io)
 * UI组件：
   * [Semantic UI](http://semantic-ui.com/)

docs/content/page/index.zh-tw.md

@@ -47,7 +47,7 @@ Gitea 的首要目標是建立一個容易安裝，運行快速，安装和使
 
 ## 元件
 
-* Web 框架： [Macaron](http://go-macaron.com/)
+* Web 框架： [Chi](http://github.com/go-chi/chi)
 * ORM： [XORM](https://xorm.io)
 * UI 元件：
   * [Semantic UI](http://semantic-ui.com/)