lat/long swapped in camera data

```
more SNEX20_SD_TLI_clean.csv
﻿Camera,Date&Time,Longitude,Latitude,UTM WGS84 Northing (meters),UTM WGS84 Easting (meters),depth
W1B,9/29/19 11:00,39.008078,-108.184794,4321444.16,743766.48,0
```

`doi = 10.5067/14EU7OLF051V`

I am swapping the order of the header information. We should build QA/QC checks on this in the future. 