Create matching rule for simapro flows with country code in name

[fjuniorr]

Closes #14

• initial match_names_with_country_codes implementation
• add location to target flows when matched by match_names_with_country_codes
• match functions return only matching information
• add method Flowmap.to_randonneur
• add new match rules

[codecov-commenter]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (b2d0440) 96.46% compared to head (5867a92) 96.72%.

Files	Patch %	Lines
flowmapper/match.py	88.00%	3 Missing :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #31 +/- ## ========================================== + Coverage 96.46% 96.72% +0.26% ========================================== Files 9 9 Lines 198 214 +16 ========================================== + Hits 191 207 +16 Misses 7 7 ```

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