Create first draft of earned credits process map

[zoeyli-46]

• [x] Map out high-level earned credits process map
• [x] Workshop with business area to fill in any gaps
• [x] Refine map

Dependecies Blocked by ticket #262 Blocked by Business Area to make decisions first!

[NicoleGovvy]

@hannavovk marking this as closed, I've created another ticket for refining the workflows #281