NetCore Generator using DataMember Attributes Instead of DeserializeAs Attributes

Description

When the DotNetCore Generator Generates the models for the the various components the models are marked up with DataMember Attributes:

IE:

        [DataMember(Name = "public", EmitDefaultValue = false)]
        public string _public { get; set; }

However the Deserializer that is used is the RestSharp.Deserializer which uses the RestSharp DeserializeAs attribute
IE:

        [DeserializeAs(Name = "public")]
        public string _public { get; set; }

Thus
The current [DataMember] attributes are completely ignored and anything that relies on them tries to use the property name to deserialize instead of the specified deserialize name.

openapi-generator version

5.0.0-beta3

Suggest a fix

Update modelGeneric.mustache to include
[DeserializeAs(Name = "{{{name}}}")] or [DeserializeAs(Name = "{{{baseName}}}")]
Any place
[DataMember is used

IE:
line 5: [DeserializeAs(Name = "{{{name}}}")]
line 6: [DataContract(Name = "{{{name}}}")]

also update model.mustache to include
using RestSharp.Deserializers;

Start with modelGeneric.mustache and model.mustache, then inspect the generated DotNetCore models that currently use DataMember attributes. Update the templates so generated properties use the RestSharp DeserializeAs attribute and the model includes the RestSharp.Deserializers import; done means serialized names such as "public" are used during deserialization.