Move cli/cloudprovider into internal/cloud

internal/cloud/cloudprovider/provider_string.go

@@ -0,0 +1,27 @@
+// Code generated by "stringer -type=Provider"; DO NOT EDIT.
+
+package cloudprovider
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[Unknown-0]
+	_ = x[AWS-1]
+	_ = x[Azure-2]
+	_ = x[GCP-3]
+	_ = x[QEMU-4]
+}
+
+const _Provider_name = "UnknownAWSAzureGCPQEMU"
+
+var _Provider_index = [...]uint8{0, 7, 10, 15, 18, 22}
+
+func (i Provider) String() string {
+	if i >= Provider(len(_Provider_index)-1) {
+		return "Provider(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _Provider_name[_Provider_index[i]:_Provider_index[i+1]]
+}