move code.gitea.io/git to code.gitea.io/gitea/modules/git (#6364)

* move code.gitea.io/git to code.gitea.io/gitea/modules/git

* fix imports

* fix fmt

* fix misspell

* remove wrong tests data

* fix unit tests

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* enable Debug to trace the failure tests

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* comment commit count tests since git clone depth is 50

* fix tests

* update from code.gitea.io/git

* revert change to makefile

models/repo_tag.go

@@ -5,7 +5,7 @@
 package models
 
 import (
-	"code.gitea.io/git"
+	"code.gitea.io/gitea/modules/git"
 )
 
 // GetTagsByPath returns repo tags by it's path