fix(api): add message builder as experimental to api

Author: sciborrudnicki

src/message-builder/index.ts

@@ -0,0 +1,3 @@
+export { MessageBuilder } from './src/message-builder.class';
+export { MessageBuilderTemplate } from './src/message-builder-template.class';
+export { MessageFunctionBuilder } from './src/message-function-builder.class';

src/public-api.ts

@@ -5,3 +5,13 @@
 export { ValidationError } from './lib/validation-error.class';
 // Interface.
 export { ErrorMessage } from './interface/error-message.interface';
+
+/*
+ * Experimental
+ */
+export {
+  // Class.
+  MessageBuilder,
+  MessageFunctionBuilder,
+  MessageBuilderTemplate,
+} from './message-builder/';