Adding new style sectionFooter for listItem molecule.

There are two places in MVA 3.0, where we need 24 pixel spacing on top, zero spacing on bottom and no separator.

MVMCoreUI/Molecules/Items/TableViewCell.swift

@@ -48,6 +48,8 @@ import UIKit
             styleStandard()
         case "header":
             styleHeader()
+        case "sectionFooter":
+            styleFooter()
         case "none":
             styleNone()
         default: break
@@ -68,6 +70,13 @@ import UIKit
         bottomSeparatorView?.style = .thin
     }
     
+    open func styleFooter() {
+        topMarginPadding = 24
+        bottomMarginPadding = 0
+        topSeparatorView?.style = .none
+        bottomSeparatorView?.style = .none
+    }
+    
     open func styleNone() {
         topMarginPadding = 0
         bottomMarginPadding = 0