handle comments better. should stay near where they were written

[RedDragonWebDesign]

• Add supports for comments at very top of file, separated by the 1st selector with a blank line
• Add support for comments above a selector
• Add support for comments above a declaration
• Add support for comments on the same line as a selector
  • Example: /* comment */ h1 {
• Add support for comments on the same line as a declaration
  • Example: /* comment */ position: absolute !important;
• Add a tests/comments.txt file