New IDataReader APIs: GetRowParser, Parse; add cache around GetTypeDeserializer that is unrelated to the query itself (just dependent on the shape of the results)

remove the lie that "binding code is only interested in names - not types"; it might have been true once, but not for a long time

Added checks to make sure that arrays get the appropriate type when d…

Snapshotter now supports private properties.

Private properties can serve as helpful passthroughs to more complex
public properties.  SqlMapper honors private properties when mapping
properties, so it seems natural for Snapshotter to follow suit on the
'get' side of things within the Dapper ecosystem.

Add all the missing First/Single/SingleOrDefault methods to match the FirstOrDefault added previously

Fix for #281 - Change CommandBehavior on ExecuteReaderAsync to match sync version

Just removing some overhead here

Remove some unused casts, variables, and warnings

Use single-row/single-result hint when possible

MySQL Test Suite for Contrib

Fix the URL to the Tests file in Readme

Fix the url to Dapper Tests

This is the "approved" xUnit pattern, via:
https://github.com/xunit/samples.xunit/tree/master/DynamicSkipExample
It's also the only way I can make the damn skipping work...but at least
it's it's one-time code to make any server set relatively easily
skippable.

Add {Query|Read}FirstOrDefault methods with optimized paths

Fix all `(object)param` and `dynamic param` declarations; we already fixed this for non-async, but it looks like it was missed for async; this is not a breaking change: `dynamic` is actually `object`+attribute

Add {Query|Read}FirstOrDefault methods with optimized paths; remove redundant `return await` constructs (prefer to return the existing Task)