Latest PyPi release, v.0.7.5.
Format specs work now, so this does as expected:
```python
print('{:>20}'.format(Colr('test', 'red')))
```
Closing code is smarter. `Colr.color()` only appends a reset code
if there is text, and color/style args were used. Tests were added
to catch any possible future regressions.
`bytes()` and `hash()` work. These may not be necessary for anyone,
but I think it makes the `Colr` class complete. `hash` may be needed
for putting `Colr`s in `set`s and whatnot anyway. `__bytes__()` was just
a convenience method added.