Merge | TdsParser functional changes (#3555)

* netcore, netfx: sync declarations of TdsOperationStatus variables

* netcore: reorder TryProcessUDTMetadata

* netfx: reorder WriteTceFeatureRequest

* netfx: reorder WriteAzureSQLSupportFeatureRequest

* netcore, netfx: merge WriteInt and SerializeInt

netcore: removed a simple WriteInt which did nothing besides call BinaryPrimitives.
netcore: when there's space in the packet buffer, WriteInt will now write to it directly (rather than write to a stack-allocated span and copy.)

* netcore: remove ConstructGuid method

* netcore, netfx: refactor and sync serialization of guids

* netcore, netfx: refactor and sync serialization of floats and doubles

This removes the need for TdsParser.netcore.cs.

* netfx: adjust TraceString - parameter was being passed to it which was never referenced in the format string

* netcore: sync exception messages with netfx

Messages of the netfx exceptions are more detailed

* netfx, netcore: centralise masking of received server options

Added mask to netcore logic.
Also removed mask on _encryptionOption from netfx - this will never be outside the range of EncryptionOptions.OPTIONS_MASK.

* netcore: enforce server certificate validation if AccessTokenCallback is set and certificate is not automatically trusted

* netfx: add static lambda to TdsExecuteSQLBatch

* netfx: remove failed attempt at static lambda

This passed state around, but never passed enough state to remove the state machine. Sync with netcore.

* netfx: sync reference to length of JSON metadata substitution sequence

* netfx: pre-PR correction: match previous behaviour when writing Guid instances from WriteUnterminatedSqlValue

* Flip order of debug assertion

* Next round of code review

Remove unnecessary conditional compilation.
Add XML documentation to clarify SerializeShort, WriteShort et al.

* netcore, netfx: sync TraceString

Both platforms will now show the TransparentNetworkIPResolution status. This is always disabled on netcore.

* Expand ParametersTest to include SqlGuid (including null value)

* netfx: port RequestContinue call from netcore

Author: edwardneal

src/Microsoft.Data.SqlClient/netcore/src/Microsoft.Data.SqlClient.csproj

@@ -822,7 +822,6 @@
     <Compile Include="Microsoft\Data\SqlClient\SqlConnectionHelper.cs" />
     <Compile Include="Microsoft\Data\SqlClient\SqlInternalConnectionTds.cs" />
     <Compile Include="Microsoft\Data\SqlClient\TdsParser.cs" />
-    <Compile Include="Microsoft\Data\SqlClient\TdsParser.netcore.cs" />
     <Compile Include="Microsoft\Data\SqlClient\TdsParser.RegisterEncoding.cs" />
     <Compile Include="Microsoft\Data\SqlClient\TdsParserStateObject.netcore.cs" />
     <Compile Include="Microsoft\Data\SqlClient\TdsParserStateObjectManaged.cs" />