Team permission to create repository in organization (#8312)

* Add team permission setting to allow creating repo in organization.

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Add test case for creating repo when have team creation access.

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* build error: should omit comparison to bool constant

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Add comment on exported functions

* Fix fixture consistency, fix existing unit tests

* Fix boolean comparison in xorm query.

* addCollaborator and changeCollaborationAccessMode separate steps

More clear to use different if-cases.

* Create and commit xorm session

* fix

* Add information of create repo permission in team sidebar

* Add migration step

* Clarify that repository creator will be administrator.

* Fix some things after merge

* Fix language text that use html

* migrations file

* Create repository permission -> Create repositories

* fix merge

* fix review comments

models/org_team.go

@@ -34,6 +34,7 @@ type Team struct {
 	NumMembers              int
 	Units                   []*TeamUnit `xorm:"-"`
 	IncludesAllRepositories bool        `xorm:"NOT NULL DEFAULT false"`
+	CanCreateOrgRepo        bool        `xorm:"NOT NULL DEFAULT false"`
 }
 
 // SearchTeamOptions holds the search options