Update loading to use @forward

This is a major re-write of Modular Scale to make it more compatible with modern versions of Sass. Additionally, the responsive typography logic is improved, with Typetura, media query, and container query output modes. There is also better support for target sizes, non-integer exponents, and more.

Support more versions of eyeglass

Update to fix Bower

Fix issue with rounding helper function removal, sorry about that y’all

Remove pixel rounding

Fix deprecation warnings in newer versions of Sass.

Added an !important flag for specificity in some frameworks like IntuitCSS. See pull 146 for details.

Fix error handling to be more compatible with future versions of Sass

• Fix bug when the exponent is 0