Set required_parameter as method of Config

[dachengx]

When calling Component.deduce at

appletree/appletree/component.py

Line 289 in 44162c6

if config.required_parameter is not None:

, the llh_name of config is not specified(it will be specified at Component.compile, where config.llh_name will be called). So for SigmaMap.required_parameter, we have to specify Component.llh_name as an argument to search for the map for llh_name.

This is a further fix of #116.

[github-actions]

Pull Request Test Coverage Report for Build 6867209184

• 26 of 29 (89.66%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.02%) to 83.953%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
appletree/config.py	23	26	88.46%

Totals
Change from base Build 6855204918:	-0.02%
Covered Lines:	1941
Relevant Lines:	2312

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💛 - Coveralls