added standard style

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

VDS/Typography/Typography.swift

@@ -52,6 +52,10 @@ public struct TextStyle: Equatable, RawRepresentable {
         self.lineSpacing = lineSpacing
         self.baselineOffset = baselineOffset
     }
+    
+    public var isBold: Bool {
+        rawValue.hasPrefix("bold")
+    }
 }
 
 extension VDSTypography {
@@ -261,9 +265,43 @@ extension TextStyle {
             boldMicro
         ]
     }
-
 }
 
+extension TextStyle {
+    public enum StandardStyle: String, CaseIterable {
+        case featureXLarge,
+             featureLarge,
+             featureMedium,
+             featureSmall,
+             featureXSmall,
+             title2XLarge,
+             titleXLarge,
+             titleLarge,
+             titleMedium,
+             titleSmall,
+             bodyLarge,
+             bodyMedium,
+             bodySmall,
+             micro
+        
+        public var bold: TextStyle {
+            return TextStyle(rawValue: "bold\(rawValue.prefix(1).uppercased())\(rawValue.dropFirst())")!
+        }
+        
+        public var regular: TextStyle {
+            TextStyle(rawValue: rawValue)!
+        }
+    }
+    
+    public func toStandardStyle() -> StandardStyle {
+        var rawName = rawValue
+        if rawName.hasPrefix("bold") {
+            let updatedRaw = rawName.replacingOccurrences(of: "bold", with: "")
+            rawName = updatedRaw.prefix(1).lowercased() + updatedRaw.dropFirst()
+        }        
+        return StandardStyle(rawValue: rawName)!
+    }
+}
 
 //MARK: FontCategory
 extension TextStyle {
@@ -350,8 +388,8 @@ extension TextStyle {
     }
 }
 
-extension TextStyle {
+extension RawRepresentable where Self.RawValue: Equatable {
-    public func isWithin(_ collection: [TextStyle]) -> Bool {
+    public func isWithin(_ collection: [Self]) -> Bool {
         (collection.first(where: {$0 == self}) != nil)
     }
 }