A full CoreCLR/DNX friendly conversion

[NickCraver]

This eliminates the dual solutions and brings Contrib into the project.json fold.

• Tests are ported to xUnit though SQLite is disabled on DNX due to Issue Sqlite support is broken in DNX #375 (Interop loads fail in the VS runner and params are busted regardless).
• Projects are consolidated down to what's currently possible with project.json.
• Contrib moved to: Dapper.Contrib and Dapper.Tests.Contrib (so tests appear at the end, no other reason vs. Dapper.Contrib.Tests)
• EF moved to: Dapper.EntityFramework(.StrongName)
• Rainbow moved to: Dapper.Rainbow
• SqlBuilder moved to: Dapper.SqlBuilder
• Packages are removed since it's not current-tooling friendly to keep them (nor was it using them).
• xUnit implemented in Contrib via abstracts - this allow us to very quickly add any database provider to the rig in a very concise way.
• Contrib unit tests fixed in various places - they were not parallel-runner friendly
• Nuspecs removed, since they aren't used anymore (to eliminate confusion)
• Removed speed tests for libraries that aren't on current versions of .Net (what would we be comparing?)
• Perf tests moved to Dapper.Tests (consolidation from Dapper.DNX.Tests), but aren't activated yet (no define)

[johandanforth]

Massive! :)

[NickCraver]

Side notes for others: ^ I updated the Appveyor builds to run tests now, once we're stable there I'll commit an appveyor.yml. Bonus: we can run MySQL and Postgres tests there, meaning the core library and contrib can test against many platforms via abstract-base test suites. See Contrib in the commit for how I'm already doing this.

[mgravell]

Looks great from here

[NickCraver]

@mgravell thanks for the eyes! I'll get the other good PRs merged in and try and get MySQL/Postgres tests working on Appveyor...those would be awesome to get many issues fixed here and be our workhorse. First though, I'll get them working locally.

[alexeyfadeev]

Project is no more compatible with Visual Studio 2012, I get right?

[mgravell]

@alexeyfadeev The sln right now is aimed at the core-clr tooling. I don't know if this is available on VS2012, but the command-line tools to build/pack/etc are freely available. For a walkthrough of how to do this: http://blog.marcgravell.com/2015/11/the-road-to-dnx-part-1.html (and 2/3), but essentially it boils down to:

git clone https://github.com/StackExchange/dapper-dot-net.git
cd dapper-dot-net\Dapper
dnu restore
dnu build

[alexeyfadeev]

Thanks, Build succeeded