Enabling serialization customization through CosmosSerializerOptions

[j82w]

Pull Request Template

Description

The Azure core SDK teams has guidelines to remove the SDK dependency from Newtonsoft and instead use the System.Text.Json serialize that is now being included in dot net core. To reduce the friction of eventually moving to the new serializer exposing any additional types from Newtonsoft goes against Azure core SDK team.

Exposing the JsonSerializerSettings in CosmosJsonDotNetSerializer was missed in the review process, and is being considered a bug. For user convenience a new constructor is added that allows setting indentation, null handling, and camel casing.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

    public class CosmosClientOptions
    {
        public CosmosSerializationOptions? SerializerOptions { get; set; }        
    }

    public struct CosmosSerializationOptions
    {
        public bool IgnoreNullValues { get; set; }

        public bool Indented { get; set; }

        public CosmosPropertyNamingPolicy PropertyNamingPolicy { get; set; }
    }

    public enum CosmosPropertyNamingPolicy
    {
        Default = 0,
        CamelCase = 1,
    }

[kirankumarkolli]

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