added a conversion of a UIFont to a TextStyle

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS/Typography/Typogprahy+Styles.swift

@@ -209,6 +209,24 @@ extension TextStyle {
             boldMicro
         ]
     }
+    
+    public static func convert(font: UIFont) -> TextStyle {
+        var found: TextStyle?
+        
+        for textStyle in allCases {
+            if font.fontName == textStyle.fontFace.fontName &&
+                font.pointSize == textStyle.pointSize {
+                found = textStyle
+                break
+            }
+        }
+        
+        guard let found else {
+            return TextStyle(rawValue: "Custom", fontFace: .custom(font.fontName), pointSize: font.pointSize)
+        }
+        
+        return found
+    }
 }
 
 extension TextStyle {