Parameters for 2030

[jdebacker]

This PR updates CCC to allow for model runs out to 2030 (per suggestion in Issue #303)

Also, updates are made to be consistent with TC 2.8.

Leaving as a WIP until TC updates to run through 2030.

[codecov-io]

Codecov Report

Merging #304 into master will not change coverage by %.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #304   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           11        11           
  Lines         1081      1085    +4     
=========================================
+ Hits          1081      1085    +4     

Impacted Files	Coverage Δ
ccc/calculator.py	100.00% <100.00%> (ø)
ccc/utils.py	100.00% <100.00%> (ø)

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