[docs] Add missing JavaDocs (#6146)

wpilibc/src/generate/WPILibVersion.cpp.in

@@ -1,4 +1,4 @@
-/*
+/**
  * Autogenerated file! Do not manually edit this file. This version is regenerated
  * any time the publish task is run, or when this file is deleted.
  */

wpilibc/src/main/native/include/frc/util/Color.h

@@ -864,8 +864,13 @@ class Color {
          wpi::hexdigit(b % 16)}};
   }
 
+  /// Red component (0-1).
   double red = 0.0;
+
+  /// Green component (0-1).
   double green = 0.0;
+
+  /// Blue component (0-1).
   double blue = 0.0;
 
  private:

wpilibc/src/main/native/include/frc/util/Color8Bit.h

@@ -115,8 +115,13 @@ class Color8Bit {
          wpi::hexdigit(blue / 16), wpi::hexdigit(blue % 16)}};
   }
 
+  /// Red component (0-255).
   int red = 0;
+
+  /// Green component (0-255).
   int green = 0;
+
+  /// Blue component (0-255).
   int blue = 0;
 };