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>

integrations/api_releases_test.go

@@ -131,7 +131,7 @@ func TestAPIGetReleaseByTag(t *testing.T) {
 
 	tag := "v1.1"
 
-	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s/",
+	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s",
 		owner.Name, repo.Name, tag)
 
 	req := NewRequestf(t, "GET", urlStr)
@@ -144,7 +144,7 @@ func TestAPIGetReleaseByTag(t *testing.T) {
 
 	nonexistingtag := "nonexistingtag"
 
-	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s/",
+	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s",
 		owner.Name, repo.Name, nonexistingtag)
 
 	req = NewRequestf(t, "GET", urlStr)
@@ -163,7 +163,7 @@ func TestAPIDeleteTagByName(t *testing.T) {
 	session := loginUser(t, owner.LowerName)
 	token := getTokenForLoggedInUser(t, session)
 
-	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/delete-tag/?token=%s",
+	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/delete-tag?token=%s",
 		owner.Name, repo.Name, token)
 
 	req := NewRequestf(t, http.MethodDelete, urlStr)
@@ -171,7 +171,7 @@ func TestAPIDeleteTagByName(t *testing.T) {
 
 	// Make sure that actual releases can't be deleted outright
 	createNewReleaseUsingAPI(t, session, token, owner, repo, "release-tag", "", "Release Tag", "test")
-	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/release-tag/?token=%s",
+	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/release-tag?token=%s",
 		owner.Name, repo.Name, token)
 
 	req = NewRequestf(t, http.MethodDelete, urlStr)