Add optional title prop to Button component

Author: Hector Arce De Las Heras

src/components/button/buttonStandAlone.tsx

@@ -72,6 +72,7 @@ const ButtonStandAloneComponent = (
       minWidth={props.minWidth}
       role={props.role}
       tabIndex={props.tabIndex}
+      title={props.title}
       type={props.type}
       onClick={props.onClick}
     >

src/components/button/types/button.ts

@@ -62,6 +62,7 @@ export interface IButtonStandAlone
   icon?: IElementOrIcon;
   form?: string;
   role?: string | ROLES;
+  title?: string;
 }
 
 /**