Supersaturation always appears as 0.2

View correct supersaturation on the Scan Information screen. Complications arise from the fact this value is not consistent across the entire scan.

Always appears as 0.2

Connected to issue #13 (closed)

• The scan checks to see if all values in the scan match the first value. If it doesn't match the first value, then the scan is marked invalid with an error code of 7 scan.Scan.post_align_self_test()