Heart Beat Graph, Raspberri PI app and integration with the heartbeat device.
Revert "Heart Beat Graph, Raspberri PI app and integration with the heartbeat device."

This reverts commit 694c4ef68dc38a1b21b99cdd9b24f7d909a29b1b.
Revert "Revert "Heart Beat Graph, Raspberri PI app and integration with the heartbeat device.""

This reverts commit f4c85de529de90490d02e94638bf86fb166dbc13.
Simple lie detector and lie point on chart.