Convert a single WGS84 coordinate to UTM.

Arguments

• lng — Longitude in degrees.
• lat — Latitude in degrees.

Returns

Float64Array with [zone_number, easting, northing, is_north].

• zone_number: UTM zone (1-60)
• easting: Easting in meters (false easting + 500,000 applied)
• northing: Northing in meters
• is_north: 1.0 for northern hemisphere, 0.0 for southern