Round MODIS projection origin coords

[dgboss]

Snow coverage outputs are seeing some very coarse resolutions over northern Vancouver Island due to rounding/floating point math. This PR sets the MODIS projection origin to rounded integers as specified by NASA.

Test Links:

Landing Page
MoreCast
Percentile Calculator
C-Haines
FireCalc
FireCalc bookmark
Auto Spatial Advisory (ASA)
HFI Calculator
SFMS Insights
Fire Watch

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.11%. Comparing base (24f571a) to head (60a5ea9).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5099   +/-   ##
=======================================
  Coverage   75.11%   75.11%           
=======================================
  Files         592      592           
  Lines       28713    28713           
  Branches     2107     2107           
=======================================
  Hits        21568    21568           
  Misses       6507     6507           
  Partials      638      638           

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud