Adds support for webmaps as basis for CMV application per current specification

• All layer types supported by webmaps are added as operational layers. reference
• basemap gallery, measure, routing (directions), and search widgets are added to CMV widgets if included in webmap. reference
• Bookmarks included in webmap are added to bookmarks widget. reference

This support is intended to complement existing CMV functionality.

• Operational Layers not in the webmap can be included in CMV app configuration.
• Widgets supported by webmap can augmented or excluded in CMV configuration.
• All core CMV widgets work without modification
• Most contributed widgets should work without modification