Refactored the Graph page to use the library plotly instead of jQuery.flot

Added the library Plotly.
Updated the page Graph to use plotly instead of jQuery.flot.
Note the tooltip window may be closed by left doubleclick on the graph area.
Implemented multiple Y axis, Dates as X axis, cumulative minimum, etc.

OS Laboratory. Huawei Russian Research Institute. Saint-Petersburg

Reviewed By: cmatthews

Differential Revision: https://reviews.llvm.org/D111289

Author: Pavel Kosov