Prebuilt Windows WinMD+DLL library

[brodycj]

Prebuilt SQLite3 WinMD+DLL library would make Windows builds much easier and will be needed to support Cordova-sqlite-legacy-build-support and Cordova-evcore-extbuild-free on Windows by PhoneGap Build ref:

• Windows 10 version on PhoneGap Build brodycj/cordova-sqlite-legacy#10
• Windows version does not work with PhoneGap Build cordova-sqlite-evcore-extbuild-free#1

This may also help with #563 (Windows 10 Release Build [Store -> Create app packages]).

Unfortunately this will not work with cordova-windows pre 5.0.0 which was recently released and not yet included by Cordova CLI. It may be necessary to add a mechanism to continue with the SQLite3 library build for older cordova-windows versions such as 4.4.1/4.4.2, similar to the solution in #580 (support both VS 2015 and 2017 RC).

[brodycj]

To clarify: this plugin will continue to support VS 2015 (with PlatformToolset v140), VS 2017 RC/final (with PlatformToolset v141 and cordova-windows 4.4.1/4.4.2), and future versions of VS 2017 with cordova-windows 5.0.0/+. Similar to the solution in #580 (VS 2015 / VS 2017 support) there would be an engine rule to select a branch as follows:

• newer cordova-windows: use prebuilt SQLite3 WinMD+DLL
• cordova-windows 4.4.1/4.4.2: build SQLite3 lib with PlatformTools v141 for VS 2017 RC/final
• cordova-windows < 4.4.1: build SQLite3 lib with PlatformToolset v140 for VS 2015

Since the latest version of Cordova CLI (6.5.0) comes with cordova-windows 4.4.3 I may not filter it out for the prebuilt SQLite3 WinMD+DLL.

/cc @vladimir-kotikov @mbraude

[brodycj]

I will probably not support prebuilt WinMD+DLL in this version within the foreseeable future due to the extra overhead needed to maintain multiple branches along with the engine rule. Prebuilt WinMD+DLL will probably be used for some other versions such as Cordova-sqlcipher-adapter and Cordova-sqlite-evcore-extbuild-free. Closing for now.