[ghbqdvpi] Numbering most of the days of the week

Create new names for the days of the week based on the following numbering.  Inspired by month names in Japanese.

1. Monday
2. Tuesday
3. Wednesday
4. Thursday
5. Friday
6. Saturday

Sunday remains named Sunday, not taking sides on whether it is the 0th day or 7th day, though both "work" if Monday is 1.