Adjustment of Stagnation Restart

[FedorSmirnov89]

Beside a test and comments for the Stagnation Restart class, the main issue of this commit is that you now can activate whether or not it is bound (before it was bound by default, without letting the user know about it) and you can adjust the number of generations that is considered as a stagnation.

[coveralls]

Pull Request Test Coverage Report for Build 8

• 2 of 13 (15.38%) changed or added relevant lines in 2 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.3%) to 9.099%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
opendse-optimization/src/main/java/net/sf/opendse/optimization/OptimizationModule.java	0	11	0.0%

Files with Coverage Reduction	New Missed Lines	%
opendse-optimization/src/main/java/net/sf/opendse/optimization/OptimizationModule.java	2	0.0%

Totals
Change from base Build 2:	0.3%
Covered Lines:	606
Relevant Lines:	6660

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💛 - Coveralls