Created GPSPath class, completed UV calculations for segment and GPSPath
GPSPath
Merge branch 'master' of github.com:jried31/UVGWS into michael

Conflicts:
	src/navigation/.DS_Store
	src/navigation/util/Constants.java
	src/navigation/util/Util.java

Merged
minor changes
Merge branch 'master' of github.com:jried31/UVGWS into michael

Conflicts:
	src/navigation/util/Constants.java
Merge branch 'master' of github.com:jried31/UVGWS into michael
Added ability for SunUtil to cache UV data in csv file in resources folder
and extract that cached data later. Cache is updated every 30 minutes.
Fixed SunUtil updateUVI() function