rename: MixingRules -> MixingRuleHandler

[asmfstatoil]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 65.61845% with 164 lines in your changes missing coverage. Please review.

Project coverage is 41.30%. Comparing base (02d8e8b) to head (c56359e).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...neqsim/thermo/mixingrule/EosMixingRuleHandler.java	66.74%	107 Missing and 30 partials ⚠️
...neqsim/thermo/mixingrule/CPAMixingRuleHandler.java	52.83%	22 Missing and 3 partials ⚠️
...va/neqsim/thermo/mixingrule/MixingRuleHandler.java	50.00%	1 Missing ⚠️
...c/main/java/neqsim/thermo/system/SystemThermo.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1262   +/-   ##
=========================================
  Coverage     41.29%   41.30%           
- Complexity     6080     6081    +1     
=========================================
  Files           725      726    +1     
  Lines         68579    68583    +4     
  Branches       8190     8190           
=========================================
+ Hits          28323    28326    +3     
- Misses        38555    38556    +1     
  Partials       1701     1701           

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[EvenSol]

Good update!