Compensating write error details

[desistefanova]

• Expose Compensating Write error details. Added a new sync error type CompensatingWriteError.

• This PR introduces some changes in ClientResetError constructor, in order to be aligned to the other SDKs. This constructor is not expected to be used by the users, because this error is created internally.

• The constructors for all the SyncError types are deprecated.

• A new property sessionErrorCode of type SyncSessionErrorCode is added, since the error category is of type session when the ClientResetError is created as an argument of ManualRecoveryHandler.

• The existing ClientResetError.code will return SyncClientErrorCode.autoClientResetFailure only if the recovery fails on the client side and the ClientResetError is created as an argument of ManualResetFallback.

Fixes #1223

[coveralls]

Pull Request Test Coverage Report for Build 5335676331

• 92 of 114 (80.7%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall First build on ds/compensating_write_error_details at 88.614%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/src/native/realm_core.dart	52	57	91.23%
lib/src/configuration.dart	40	57	70.18%

Totals
Change from base Build 5334649138:	88.6%
Covered Lines:	3222
Relevant Lines:	3636

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💛 - Coveralls

[desistefanova]

I handled most of the comments. I will add a discussion point for some of the rest comments.

[nielsenko]

A part for the .orig file that was added this LGTM.