* ci: add electron 8.1 & 8.2 (Linux & MacOS)
* prebuilt: add electron 8.1 & 8.2 (Windows)

* Split sqlite3-binding.js out so that it could be override by webpack options.

Co-authored-by: Kewde <kewde@particl.io>

Fixes #1293

* Update common-sqlite.gypi
* replace sqlite-autoconf-3310100.tar.gz

Deprecated since Electron v7.0.
https://github.com/electron/electron/blob/master/docs/breaking-changes.md#node-headers-url

* prebuilt: electron 7.1 (Windows)

* prebuilt: electron 7.1 (linux & osx)

* upgrade node to 8 for 7.1

See https://electronjs.org/releases/stable#release-notes-for-v700

* deps: alternative update of node-gyp for electron (v5 & v6), windows

node-gyp uses 'msbuild_toolset' in 'target_defaults' to specify what
toolset should be used, according to what version of Visual Studio
was detected.

Before this change, when 'toolset' was not specified, node-sqlite3
failed to compile with any version of Visual Studio after 2015,
because gyp fails to detect the toolset correctly.

With this change 'toolset' is only used if defined, fixing
compilation with node-gyp and recent VS versions.

Update SQLite3 to 3.30.1

sha1sum
```
8383f29d53fa1d4383e4c8eb3e087f2ed940a9e0  sqlite-autoconf-3300100.tar.gz
```

sha256sum
```
8c5a50db089bd2a1b08dbc5b00d2027602ca7ff238ba7658fabca454d4298e60  sqlite-autoconf-3300100.tar.gz
```

Verified to match https://sqlite.org/download.html