Group users of same private domain (#243)

* Added Domain Category field and fix store tests

* Add GetAccountByDomain method

* Add Domain Category to authorization claims

* Initial GetAccountWithAuthorizationClaims test cases

* Renamed Private Domain map and index it on saving account

* New Go build tags

* Added NewRegularUser function

* Updated restore to account for primary domain account

Also, added another test case

* Added grouping user of private domains

Also added auxiliary methods for update metadata and domain attributes

* Update http handles get account method and tests

* Fix lint and document another case

* Removed unnecessary log

* Move use cases to method and add flow comments

* Split the new user and existing logic from GetAccountWithAuthorizationClaims

* Review: minor corrections

Co-authored-by: braginini <bangvalo@gmail.com>

iface/ifacename.go

@@ -1,3 +1,4 @@
+//go:build linux || windows
 // +build linux windows
 
 package iface

iface/ifacename_darwin.go

@@ -1,3 +1,4 @@
+//go:build darwin
 // +build darwin
 
 package iface