extractFeatsPALMSOneFile: Extract GPS features from a PALMS file
In TLBC: Two-Level Behavior Classification

Function to extract GPS features from PALMS-filtered GPS data file.

1	extractFeatsPALMSOneFile(inputFile, outputDir, winSize, names=NULL)

`inputFile`	Path to a file containing PALMS-filtered GPS data. Should be a csv file with the following fields: identifier, dateTime, speed, distance, duration, ele, elevationDelta, lat, lon, nsatUsed, nsatView, snrUsed, snrView, fixType.
`outputDir`	Path to a directory to save computed features. A separate file will be created containing features for each day.
`winSize`	Window size in seconds.
`names`	(Optional) If provided, compute features only for identifiers in this list.