[Jobs Match Making] Implement matching logic in Python: find all jobs eligible for a pilot

[aldbr]

Description

Implement the functions that determine whether a node characteristics satisfy a job's scheduling requirements, and use them to find all matching jobs for a given pilot.

The spec defines the comparison types: exact match, range, lower limit, CPU memory as a function of core count, and tag boolean expressions.

Definition of Done

• A function that takes a job's scheduling requirements and a node characteristics and returns whether they match
• Tag expression evaluator supporting at least & (AND) and | (OR)
• All combinations from the match matrix produce the expected result
• Given a pilot and a collection of jobs, return all matching jobs
• Unit tests including edge cases
• Additional YAML examples added by the intern for edge cases discovered during implementation?