Striplog to html

[kwinkunks]

A method to render HTML would let us render a nice table in IPython Notebook with their special functions, like so...

https://ipython.org/ipython-doc/dev/config/integrating.html

Ditto for SVG, see #27

[kwinkunks]

This would also be nice for striplog.top()

[Later] Actually can't use that method, because it's a special repr

[kwinkunks]

Implemented something for Component, makes a little table.