Dev/seanmcm/update changelog master0 17 0 insiders2 (#1920)

* Update changelog.

* Update changelog with snippets/vcpkg change.

Author: sean-mcmanus

Extension/CHANGELOG.md

@@ -7,6 +7,8 @@
   * Potentially addresses: [#368](https://github.com/Microsoft/vscode-cpptools/issues/368), [#410](https://github.com/Microsoft/vscode-cpptools/issues/410), [#1229](https://github.com/Microsoft/vscode-cpptools/issues/1229), [#1270](https://github.com/Microsoft/vscode-cpptools/issues/), [#1404](https://github.com/Microsoft/vscode-cpptools/issues/1404)
 * Add support for querying system includes/defines from WSL and Cygwin compilers. [#1845](https://github.com/Microsoft/vscode-cpptools/issues/1845), [#1736](https://github.com/Microsoft/vscode-cpptools/issues/1736)
 * Fix IntelliSense for WSL projects in Windows builds 17110 and greater. [#1694](https://github.com/Microsoft/vscode-cpptools/issues/1694)
+* Add snippets. [PR #1823](https://github.com/Microsoft/vscode-cpptools/pull/1823)
+* Add support for vcpkg. [PR #1886](https://github.com/Microsoft/vscode-cpptools/pull/1886)
 * Stop automatically adding `/usr/include` to the `includePath`. [#1819](https://github.com/Microsoft/vscode-cpptools/issues/1819)
 * Fix wrong configuration being used if there are four or more. [#1599](https://github.com/Microsoft/vscode-cpptools/issues/1599)
 * Fix `c_cpp_properties.json` requiring write access. [#1790](https://github.com/Microsoft/vscode-cpptools/issues/1790)