Add ots-- prefixed version of lfc-- components

To resolve the mess that is having both torque-- and lfc---prefixed versions of the same components, we’re going to standardize around just ots--, and have Torque define the base required functionality while LFCTheme defines the styles and more brand-specific functionality. As a slow step towards that transition, we’re adding ots---prefixed classes everywhere we currently use lfc-- or torque-- prefixes (for common components).

This MR is one of many to begin this transition. Nothing should visibly change -- that's the point for now.