Add a "bigO" class and replace colors by names

This use a better semantic and permits to avoid CSS code duplicates.
Remove the table-stripped class from tables

The stripped class is mutually exclusive weth the bordered one.
Thus it is of no use here.
Indent: replace tabs with space, remove extra spaces
Add a minimal template to display/print the tables

Add a minimal CSS and html header/footer.
Add a small shell script to assemble the files in an index.html, which is ignored by git.
Thus the tables can be printed or displayed rapidely.