Merge branch 'XX-3886/UdbIntegration' into 'restructure'

api/client.go

api/precan.go

api/user.go

bindings/ud.go

cmd/ud.go

cmix/remoteFilters.go

go.mod

go.sum

interfaces/networkManager.go

single/request.go

storage/user/cryptographic.go

ud/interfaces.go

ud/manager.go

ud/register.go

ud/search.go

xxmutils/restoreContacts.go