Dynamic column development stages

[glemieux]

Initial Steps:

• 0, 1 weighted column
• split fractional columns and confirm sums across columns

NGEE-T land use columns

• primary land columns and everything else (gross flux)
• primarylands columns, secondarylands columns (net transitions)

NGEE-A time-since-fire

• two bins: above and below some age value
• multiple bins

[glemieux]

Moving this to the design document "rollout steps".