Always match eCQM Population definitions between versions

[lukoktonos]

Currently if, for example, "Initial Population" changes enough from v1 to v2, the matching strategy may match it with a different define statement that has a smaller edit distance. But we always want to match up known population titles between versions.

• Initial Population (And Initial Population X) for any number X, same pattern for others
• Denominator
• Numerator
• Denominator Exceptions
• Denominator Exclusions
• Numerator Exclusions
• Measure Observation
• Measure Population

potentially "Stratification X" for any number X as well.

[lukoktonos]

Fixed in 3b6eee377e45ec65f7dccee59dfb9f5d63e349c6