Dash api

[biwano]

Dash-API application

Fixes #154 Fixes #157 Fixes #159 Fixes #160 Fixes #161 Fixes #162

• [x] Raw Credits endpoint
• [x] Credits aggregations endpoints
  • [x] Total
  • [x] Daily aggregation (normal and cumulative)
  • [x] Monthly aggregation (normal and cumulative)
  • [x] Countries aggregation
  • [x] Projects aggregation
  • [x] Methodologies aggregation
  • [x] Raw pools endpoint
  • [x] Pools aggregations endpoint
  • [x] Total
  • [x] Daily aggregation (normal and cumulative)
  • [x] Monthly aggregation (normal and cumulative)
• [x] Credits Holders endpoint
• [x] Token prices endpoints
  • [x] Latest Price
  • [x] History
• [x] Carbon Supply endpoint
• [x] Raw Retirements endpoint
• [x] Retirements aggregations endpoints
  • [x] Pools aggregations
  • [x] Tokens aggregations
  • [x] Chains aggregations
  • [x] Beneficiaries aggregations

[biwano]

Raised one minor issue with a stray docstring commented chunk of code

It does seem like we could rename the API endpoints to refer to credits instead of offsets and then later on deal with the change in the underlying subgraphs... that way when we build the new frontend that queries the API, it will already be referring to credits instead of offsets (even though the underlying datasets are still called offsets)

AFAICT none of the actual response contents use the term offset - only the endpoint names...

I changed the endpoints and refactored the code