Support PostCSS files

Add new rules from Visual Studio 16.9 (RehanSaeed#49)

Fix Rule Severities (RehanSaeed#45)

* Revert "Add support for VS 16.8 which introduced breaking changes (RehanSaeed#42)"

This reverts commit 4bf2cd6.

* Fix rule severities

Add support for VS 16.8 which introduced breaking changes (RehanSaeed#42

)

Add warning severity to modifier order (RehanSaeed#39)

Add warning severity to modifier order

Updating SA1636 header rules (RehanSaeed#36)

* Updating default severity of SA1636 to match that of StyleCop defaults

* Updating date

* Further improvements for alignment with StyleCop

* Addressing some PR feedback

Add File Headers Configuration (RehanSaeed#33)

Add file headers configuration

Prefer Simplified Interpolation & .jsm/.vbx Support (RehanSaeed#25)

* Add dotnet_style_prefer_simplified_interpolation
* Update readme
* Bump version

Prefer simple using statements as suggestions

.cmd and .bat files should use CRLF line endings (RehanSaeed#19)

* .cmd and .bat files should use CRLF line endings

* cmd and bat files should be crlf