Add flag for 'exact match'

[obi134]

Description

A Flag called 'exact_match' was added. Now it can be checked, if a call needs to match exactly to apply the data.

• Added Comments for better understanding the code
• Added flag to dict
• Change flag in dict when prefix starts with '='
• Fix problem when data is reused for continued dxcc entry (previously data from primary prefix was also changed)

Fixes #42

Type of change

• Bug fix
• New feature
• Refactor/code cleanup

How has this been tested?

China: 24: 44: AS: 36.00: -102.00: -8.0: BY:
3H,3H0(23)[42],=B7/BA7CK(26),=BD9BI/0(23)[42]
Fed. Rep. of Germany: 14: 28: EU: 51.00: -10.00: -1.0: DL:
=DR9Z/LH;

Results in:
'entity': 'Fed. Rep. of Germany', 'cq': 14, 'itu': 28, 'continent': 'EU', 'lat': 51.0, 'long': -10.0, 'tz': 1.0, 'len': 2, 'primary_pfx': 'DL', 'exact_match': False}
{'entity': 'Fed. Rep. of Germany', 'cq': 14, 'itu': 28, 'continent': 'EU', 'lat': 51.0, 'long': -10.0, 'tz': 1.0, 'len': 2, 'primary_pfx': 'DL', 'exact_match': True}
{'entity': 'China', 'cq': 24, 'itu': 44, 'continent': 'AS', 'lat': 36.0, 'long': -102.0, 'tz': 8.0, 'len': 2, 'primary_pfx': 'BY', 'exact_match': False}
{'entity': 'China', 'cq': 24, 'itu': 44, 'continent': 'AS', 'lat': 36.0, 'long': -102.0, 'tz': 8.0, 'len': 2, 'primary_pfx': 'BY', 'exact_match': False}
{'entity': 'China', 'cq': 23, 'itu': 42, 'continent': 'AS', 'lat': 36.0, 'long': -102.0, 'tz': 8.0, 'len': 2, 'primary_pfx': 'BY', 'exact_match': False}
{'entity': 'China', 'cq': 26, 'itu': 44, 'continent': 'AS', 'lat': 36.0, 'long': -102.0, 'tz': 8.0, 'len': 2, 'primary_pfx': 'BY', 'exact_match': True}
{'entity': 'China', 'cq': 23, 'itu': 42, 'continent': 'AS', 'lat': 36.0, 'long': -102.0, 'tz': 8.0, 'len': 2, 'primary_pfx': 'BY', 'exact_match': True}

Checklist

• Issue exists for PR
• Code reviewed by the author
• Code documented (comments or other documentation)
• Changes tested
• All tests pass (see DEVELOPING.md, if it exists)
• CHANGELOG.md updated if needed
• Informative commit messages
• Descriptive PR title

[classabbyamp]

The exact_match part of this PR is good.

We would prefer that next time the commenting/documentation gets added in another PR, preferably one with an issue attached.

For more details, see the review comments.

[obi134]

Okay, thanks for you feedback. Accepted your suggestions