Add resource_project_branch_permissions (#47)

Resolves gavinbunney/terraform-provider-bitbucketserver#17

bitbucket/helpers.go

@@ -0,0 +1,21 @@
+package bitbucket
+
+import (
+	"fmt"
+)
+
+func baseConfigForRepositoryBasedTests(projectKey string) string {
+	config := fmt.Sprintf(`
+		resource "bitbucketserver_project" "test" {
+			key = "%v"
+			name = "test-project-%v"
+		}
+
+		resource "bitbucketserver_repository" "test" {
+			project = bitbucketserver_project.test.key
+			name = "repo"
+		}
+	`, projectKey, projectKey)
+
+	return config
+}