Implement signInAnonymously from the JS client

[acupofjose]

Re: #87

Current Supabase Documentation:
https://supabase.com/docs/guides/auth/auth-anonymous

Relevant Code here:
https://github.com/supabase/auth-js/blob/92fefbd49f25e20793ca74d5b83142a1bb805a18/src/GoTrueClient.ts#L368-L401

[acupofjose]

Available in v4.2.7

[kaushalkumar86]

Thanks for the instant update.
I already implemented it and its working as expected.
Although, I have a few more requests, can you please add the following lines in User.cs, so that it can be checked whether the user is anonymous or not..

[JsonProperty("is_anonymous")] public bool IsAnomynous { get; set; }

Also, can you also look into supabase.auth.linkIdentity, referenced https://github.com/supabase/auth-js/blob/92fefbd49f25e20793ca74d5b83142a1bb805a18/src/GoTrueClient.ts#L1734-L1799

[acupofjose]

Can do!

[acupofjose]

Available in v4.3.0