Adding sorting to solver matching algorithm

[bgins]

General Description

The solver matches job offers and resource offers by a machine spec and statistics constraints. In addition, the matching algorithm may sort job offers and resource offers before, during, or after constraints matching.

We will add the following sorts to the initial version of the matching algorithm:

• Job offers are sorted oldest first
• When considering a job offer in fixed pricing mode, sort resource offers by oldest offer first
• When considering a job offer in market pricing mode, sort resource offers by cheapest offer first
  • If multiple resource offers offer the same cheap price, sort the resource offers again oldest first

Which system(s) or functionality does this affect

The solver is affected directly. The matching algorithm has indirect consequences on resource providers and job creators.

Describe the changes, and how this affects/ interacts with each system.

The implementation will be entirely in the solver. We will add sorts once defined where appropriate in the matching code.