Add polymer option to flow_ebos

No extra equation is added for polymer in the well equation.

Seperate executables are added for polymer: flow_ebos_polymer
and solvent: flow_ebos_solvent

Tested and verified on the test cases in polymer_test_suite

This PR should not effect the performance and results of the blackoil
simulator

opm/autodiff/FlowMainPolymer.hpp

@@ -89,10 +89,6 @@ namespace Opm
             }
         }
 
-
-
-
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         // Setup linear solver.
         // Writes to:
         //   fis_solver_