Implement new features for svg components + improve form properties (#25)

- Make Dimension an actual svg line
- Implement XPositionReference
- Select the container above after delete
- Remove DimensionLayer
- Improve form properties

Reviewed-on: https://git.siklos-chaneru.duckdns.org/Siklos/svg-layout-designer-react/pulls/25

test-server/http.js

@@ -76,9 +76,6 @@ const GetSVGLayoutConfiguration = () => {
           fillOpacity: 0,
           borderWidth: 2,
           stroke: 'blue',
-          transform: 'translateX(-50%)',
-          transformOrigin: 'center',
-          transformBox: 'fill-box'
         }
       }
     ],