Add support for linking to winsqlite3

[nazar554]

There is system sqlite library on Windows 10 machines since Anniversary Update https://blogs.windows.com/windowsdeveloper/2017/02/06/using-sqlite-databases-uwp-apps/

Not sure if using wrapper.h is a good idea, otherwise I need to figure out full path to Windows SDK

[codecov]

Codecov Report

Merging #796 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #796   +/-   ##
=======================================
  Coverage   76.36%   76.36%           
=======================================
  Files          46       46           
  Lines        5294     5294           
=======================================
  Hits         4043     4043           
  Misses       1251     1251           

Impacted Files	Coverage Δ
libsqlite3-sys/build.rs	0.00% <ø> (ø)

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[thomcc]

Is there anything that should be done for our CI coverage here?

[nazar554]

@thomcc Maybe enabling builds with winsqlite3 feature for Windows -msvc and -gnu targets? Not sure where to do that though

[thomcc]

Thanks

[thomcc]

Okay. I'll figure out CI in a follow up.

@nazar554 Do you have any links where I can find out version info for versions shipped with win10? It's relevant probably to #706.

I'm very surprised to hear they're shipping such an old version in windows, since SQLite tends not to break stuff with updates...

P.S. Sorry for the delay with landing this. It came at a bad time for me personally.

[nazar554]

@thomcc Here it was added (3.8.8.3, Windows 10 10.0.10586.0)

And then updated to 3.12.2 in Windows 10 10.0.14393.0

I am running 10.0.19041.508 (May 2020 update) right now and winsqlite3.dll is version 3.29.0.0

[thomcc]

3.29 wouldn't be a problem to support. 3.8 and 3.12 are both newer than our current min version, although honestly I kind of want us to be able to say something like "we don't support SQLite versions older than 5 years" (in rusqlite — the pain caused by supporting these in libsqlite3-sys is pretty minor).

Oh well, more food for thought I guess.