Initial QSfera import

Server/vendor/github.com/open-policy-agent/opa/rego/errors.go

@@ -0,0 +1,17 @@
+package rego
+
+import v1 "github.com/open-policy-agent/opa/v1/rego"
+
+// HaltError is an error type to return from a custom function implementation
+// that will abort the evaluation process (analogous to topdown.Halt).
+type HaltError = v1.HaltError
+
+// NewHaltError wraps an error such that the evaluation process will stop
+// when it occurs.
+func NewHaltError(err error) error {
+	return v1.NewHaltError(err)
+}
+
+// ErrorDetails interface is satisfied by an error that provides further
+// details.
+type ErrorDetails = v1.ErrorDetails