stylecow plugin import

Stylecow plugin to include the @import css files with relative paths in the main css file.

You write:

@import "my-styles.css";
 
.foo {
    color: blue;
}

And stylecow converts to:

.imported-foo {
    font-size: 2em;
}
.other-imported-foo {
    background: blue;
}
.foo {
    color: blue;
}

More demos in the tests folder