v2.8.1.1

• Adds Condition property to AltitudeEvents class, allowing users to determine the sun's rise/set condition for a date at specified altitudes.

Example:

Coordinate c = new Coordinate(47.40615, -122.24517, new DateTime(2020, 8, 11));

//Determine times the sun passes through 57.8 degrees.
var t = Celestial.Get_Time_at_Solar_Altitude(c, 57.8);
t.Rising; //Null
t.Setting; //Null;

//Should show DownAllDay as the sun never reaches a height of 57.8 degree at the specified location and date.
t.Condition; //DownAllDay

• Adds ability to output UTM/MGRS rounded and centimeter strings.

UTM/MGRS coordinates are truncated per standard. Though this makes sense in terms of operating in those systems, it can have adverse impacts when converting back and forth between UTM/MGRS and Lat/Long as precision loss will occur. Rounded and Centimeter versions of these systems are also available for output. These values may be more reliable if converting back and forth between UTM/MGRS and Lat/Long systems.

Example:

Coordinate c = new Coordinate(40.57682, -70.75678);
c.MGRS.ToRoundedString(); // Outputs 19T CE 51308 93265
c.MGRS.ToCentimterString(); // Outputs 19T CE 51307.55707 93264.83597

• Improves parsers.

Uneven spacing should no longer effect parsers: "N45 E 45" will now parse.

• Adds CoordinateSharp.Formatters namespace containing useful mathematical functions to convert things such as radians, degrees, HMS, etc.

• Completes unit tests port.