Added Cinder Storage Pools API

Change-Id: I9b57058c313ae961fa90bc02f69dfd4be6afef03
diff --git a/openstack/blockstorage/extensions/schedulerstats/requests.go b/openstack/blockstorage/extensions/schedulerstats/requests.go
new file mode 100644
index 0000000..a19cc9d
--- /dev/null
+++ b/openstack/blockstorage/extensions/schedulerstats/requests.go
@@ -0,0 +1,43 @@
+package schedulerstats
+
+import (
+	"gerrit.mcp.mirantis.net/debian/gophercloud.git"
+	"gerrit.mcp.mirantis.net/debian/gophercloud.git/pagination"
+)
+
+// ListOptsBuilder allows extensions to add additional parameters to the
+// List request.
+type ListOptsBuilder interface {
+	ToStoragePoolsListQuery() (string, error)
+}
+
+// ListOpts controls the view of data returned (e.g globally or per project)
+// via tenant_id and the verbosity via detail.
+type ListOpts struct {
+	// ID of the tenant to look up storage pools for.
+	TenantID string `q:"tenant_id"`
+
+	// Whether to list extended details.
+	Detail bool `q:"detail"`
+}
+
+// ToStoragePoolsListQuery formats a ListOpts into a query string.
+func (opts ListOpts) ToStoragePoolsListQuery() (string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+	return q.String(), err
+}
+
+// List makes a request against the API to list storage pool information.
+func List(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
+	url := storagePoolsListURL(client)
+	if opts != nil {
+		query, err := opts.ToStoragePoolsListQuery()
+		if err != nil {
+			return pagination.Pager{Err: err}
+		}
+		url += query
+	}
+	return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
+		return StoragePoolPage{pagination.SinglePageBase(r)}
+	})
+}