coreapi: move tests to interface subpackage

License: MIT
Signed-off-by: Łukasz Magiera <magik6k@gmail.com>

core/coreapi/block_test.go → core/coreapi/interface/tests/block_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/dag_test.go → core/coreapi/interface/tests/dag_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/dht_test.go → core/coreapi/interface/tests/dht_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/key_test.go → core/coreapi/interface/tests/key_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/name_test.go → core/coreapi/interface/tests/name_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/object_test.go → core/coreapi/interface/tests/object_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"bytes"

core/coreapi/path_test.go → core/coreapi/interface/tests/path_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/pin_test.go → core/coreapi/interface/tests/pin_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/pubsub_test.go → core/coreapi/interface/tests/pubsub_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"context"

core/coreapi/unixfs_test.go → core/coreapi/interface/tests/unixfs_test.go

-package coreapi_test
+package tests_test
 
 import (
 	"bytes"