Move into Shared SqlDependencyListener.cs

[lcheunglci]

Relates to #1261 . Merged netfx to netcore and move it to shared src. While cleaning up the coding style errorlist, I left 2 IDE0063 (Line 957 and Line 1076) info messages because I chose to keep the scope bodied using statement and there was a IDE0079 suggesting that I remove the suppression of CA2100:ReviewSqlQueriesForSecurityVulnerabilities on Line 968, which I left. I may need to merge PR #1299 because there's a small change to the property to the property to retrieve the static instance of SingletonProcessDispatcher.

[johnnypham]

Some events were using SqlClientEventSource.Log.TryNotificationTraceEvent in netfx and SqlClientEventSource.Log.TryTraceEvent in netcore. Not sure which one we should use. Maybe someone else can comment.

[lcheunglci]

Some events were using SqlClientEventSource.Log.TryNotificationTraceEvent in netfx and SqlClientEventSource.Log.TryTraceEvent in netcore. Not sure which one we should use. Maybe someone else can comment.

I noticed that too. I'm not sure if we need to unify those and if so which one should we be using.

[JRahnama]

@lcheunglci can you address the conflict please?

[lcheunglci]

Some events were using SqlClientEventSource.Log.TryNotificationTraceEvent in netfx and SqlClientEventSource.Log.TryTraceEvent in netcore. Not sure which one we should use. Maybe someone else can comment.

I noticed that too. I'm not sure if we need to unify those and if so which one should we be using.

After a discussion with @cheenamalhotra and @JRahnama , I believe the consensus is to use the one from netfx. I'll make the updates in the next commit.

[Kaur-Parminder]

NIT: @lcheunglci There are 'new' expression simplification info suggestions for line 87,1636,1713.

[cheenamalhotra]

Please reset branch to contain only PR related changes.