Move api-v2 files into v2 subdir

This subdir contains generated proto files
and small wrappers.

v2/container/types.go

@@ -0,0 +1,55 @@
+package container
+
+import (
+	"github.com/nspcc-dev/neofs-api-go/v2/netmap"
+	"github.com/nspcc-dev/neofs-api-go/v2/refs"
+)
+
+// SetKey sets key to the container attribute.
+func (m *Container_Attribute) SetKey(v string) {
+	if m != nil {
+		m.Key = v
+	}
+}
+
+// SetValue sets value of the container attribute.
+func (m *Container_Attribute) SetValue(v string) {
+	if m != nil {
+		m.Value = v
+	}
+}
+
+// SetOwnerId sets identifier of the container owner,
+func (m *Container) SetOwnerId(v *refs.OwnerID) {
+	if m != nil {
+		m.OwnerId = v
+	}
+}
+
+// SetNonce sets nonce of the container structure.
+func (m *Container) SetNonce(v []byte) {
+	if m != nil {
+		m.Nonce = v
+	}
+}
+
+// SetBasicAcl sets basic ACL of the container.
+func (m *Container) SetBasicAcl(v uint32) {
+	if m != nil {
+		m.BasicAcl = v
+	}
+}
+
+// SetAttributes sets list of the container attributes.
+func (m *Container) SetAttributes(v []*Container_Attribute) {
+	if m != nil {
+		m.Attributes = v
+	}
+}
+
+// SetRules sets placement rules of the container.
+func (m *Container) SetRules(v *netmap.PlacementRule) {
+	if m != nil {
+		m.Rules = v
+	}
+}