removed serialization elements from the public api

com.unity.perception/Runtime/Randomization/Scenarios/Serialization/JsonConverters.cs

 
 namespace UnityEngine.Perception.Randomization.Scenarios.Serialization
 {
-    public class GroupItemsConverter : JsonConverter
+    class GroupItemsConverter : JsonConverter
     {
         public override bool CanWrite => true;
 
         }
     }
 
-    public class ParameterItemsConverter : JsonConverter
+    class ParameterItemsConverter : JsonConverter
     {
         public override bool CanRead => true;
 
         }
     }
 
-    public class SamplerOptionsConverter : JsonConverter
+    class SamplerOptionsConverter : JsonConverter
     {
         public override bool CanRead => true;
 
         }
     }
 
-    public class ScalarConverter : JsonConverter
+    class ScalarConverter : JsonConverter
     {
         public override bool CanRead => true;
 

com.unity.perception/Runtime/Randomization/Scenarios/Serialization/SerializationStructures.cs

 namespace UnityEngine.Perception.Randomization.Scenarios.Serialization
 {
     #region Interfaces
-    public interface IGroupItem { }
+    interface IGroupItem { }
-    public interface IParameterItem { }
+    interface IParameterItem { }
-    public interface ISamplerOption { }
+    interface ISamplerOption { }
-    public interface IScalarValue { }
+    interface IScalarValue { }
-    public class TemplateConfigurationOptions
+    class TemplateConfigurationOptions
-    public class StandardMetadata
+    class StandardMetadata
-    public class Group
+    class Group
     {
         public StandardMetadata metadata = new StandardMetadata();
         [JsonConverter(typeof(GroupItemsConverter))]
-    public class Parameter : IGroupItem
+    class Parameter : IGroupItem
     {
         public StandardMetadata metadata = new StandardMetadata();
         [JsonConverter(typeof(ParameterItemsConverter))]
 
     #region SamplerOptions
     [JsonConverter(typeof(SamplerOptionsConverter))]
-    public class SamplerOptions : IParameterItem
+    class SamplerOptions : IParameterItem
-    public class UniformSampler : ISamplerOption
+    class UniformSampler : ISamplerOption
-    public class NormalSampler : ISamplerOption
+    class NormalSampler : ISamplerOption
     {
         public double min;
         public double max;
 
-    public class ConstantSampler : ISamplerOption
+    class ConstantSampler : ISamplerOption
     {
         public double value;
     }
     [JsonConverter(typeof(ScalarConverter))]
-    public class Scalar : IGroupItem, IParameterItem
+    class Scalar : IGroupItem, IParameterItem
-    public class StringScalarValue : IScalarValue
+    class StringScalarValue : IScalarValue
-    public class DoubleScalarValue : IScalarValue
+    class DoubleScalarValue : IScalarValue
-    public class BooleanScalarValue : IScalarValue
+    class BooleanScalarValue : IScalarValue
     {
         public bool boolean;
     }