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/doc/advanced/logging-documentation.en-us.md

@@ -67,40 +67,11 @@ The provider type of the sublogger can be set using the `MODE` value in
 its subsection, but will default to the name. This allows you to have
 multiple subloggers that will log to files.
 
-### The "Macaron" logger
-
-By default Macaron will log to its own go `log` instance. This writes
-to `os.Stdout`. You can redirect this log to a Gitea configurable logger
-through setting the `REDIRECT_MACARON_LOG` setting in the `[log]`
-section which you can configure the outputs of by setting the `MACARON`
-value in the `[log]` section of the configuration. `MACARON` defaults
-to `file` if unset.
-
-Please note, the macaron logger will log at `INFO` level, setting the
-`LEVEL` of this logger to `WARN` or above will result in no macaron logs.
-
-Each output sublogger for this logger is configured in
-`[log.sublogger.macaron]` sections. There are certain default values
-which will not be inherited from the `[log]` or relevant
-`[log.sublogger]` sections:
-
-- `FLAGS` is `stdflags` (Equal to
-  `date,time,medfile,shortfuncname,levelinitial`)
-- `FILE_NAME` will default to `%(ROOT_PATH)/macaron.log`
-- `EXPRESSION` will default to `""`
-- `PREFIX` will default to `""`
-
-NB: You can redirect the macaron logger to send its events to the gitea
-log using the value: `MACARON = ,`
-
 ### The "Router" logger
 
-There are two types of Router log. By default Macaron send its own
-router log which will be directed to Macaron's go `log`, however if you
-`REDIRECT_MACARON_LOG` you will enable Gitea's router log. You can
-disable both types of Router log by setting `DISABLE_ROUTER_LOG`.
+You can disable Router log by setting `DISABLE_ROUTER_LOG`.
 
-If you enable the redirect, you can configure the outputs of this
+You can configure the outputs of this
 router log by setting the `ROUTER` value in the `[log]` section of the
 configuration. `ROUTER` will default to `console` if unset. The Gitea
 Router logs the same data as the Macaron log but has slightly different
@@ -162,11 +133,11 @@ This value represent a go template. It's default value is:
 
 The template is passed following options:
 
-- `Ctx` is the `macaron.Context`
+- `Ctx` is the `context.Context`
 - `Identity` is the `SignedUserName` or `"-"` if the user is not logged
   in
 - `Start` is the start time of the request
-- `ResponseWriter` is the `macaron.ResponseWriter`
+- `ResponseWriter` is the `http.ResponseWriter`
 
 Caution must be taken when changing this template as it runs outside of
 the standard panic recovery trap. The template should also be as simple