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>

modules/setting/log.go

@@ -254,17 +254,6 @@ func generateNamedLogger(key string, options defaultLogOptions) *LogDescription
 	return &description
 }
 
-func newMacaronLogService() {
-	options := newDefaultLogOptions()
-	options.filename = filepath.Join(LogRootPath, "macaron.log")
-	options.bufferLength = Cfg.Section("log").Key("BUFFER_LEN").MustInt64(10000)
-
-	Cfg.Section("log").Key("MACARON").MustString("file")
-	if RedirectMacaronLog {
-		generateNamedLogger("macaron", options)
-	}
-}
-
 func newAccessLogService() {
 	EnableAccessLog = Cfg.Section("log").Key("ENABLE_ACCESS_LOG").MustBool(false)
 	AccessLogTemplate = Cfg.Section("log").Key("ACCESS_LOG_TEMPLATE").MustString(
@@ -360,7 +349,6 @@ func RestartLogsWithPIDSuffix() {
 // NewLogServices creates all the log services
 func NewLogServices(disableConsole bool) {
 	newLogService()
-	newMacaronLogService()
 	newRouterLogService()
 	newAccessLogService()
 	NewXORMLogService(disableConsole)

modules/setting/session.go

@@ -41,7 +41,7 @@ var (
 func newSessionService() {
 	sec := Cfg.Section("session")
 	SessionConfig.Provider = sec.Key("PROVIDER").In("memory",
-		[]string{"memory", "file", "redis", "mysql", "postgres", "couchbase", "memcache", "nodb"})
+		[]string{"memory", "file", "redis", "mysql", "postgres", "couchbase", "memcache"})
 	SessionConfig.ProviderConfig = strings.Trim(sec.Key("PROVIDER_CONFIG").MustString(path.Join(AppDataPath, "sessions")), "\" ")
 	if SessionConfig.Provider == "file" && !filepath.IsAbs(SessionConfig.ProviderConfig) {
 		SessionConfig.ProviderConfig = path.Join(AppWorkPath, SessionConfig.ProviderConfig)