DMDc implementation (#238)

* Add MATLAB version

* Update MATLAB script

* Initialize DMDc scripts

* Add heat conduction DMDC script

* astyle

* Minor updates

* Astyle

* Minor fix

* Updates

* Minor fix

* Minor updates

* Astyle

* Minor Fixes

* Fix some bugs

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* Add examples

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* Default empty mesh

* Add reference map for general meshes

* Remove mesh file

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* Minor changes

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* Add comments

* Replace reduced dimension by energy fraction in MATLAB

* Add delete

* Fix time dependence

* Astyle

* Fix comment

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* Update example results

CMakeLists.txt

@@ -140,6 +140,7 @@ if (ENABLE_EXAMPLES)
       dg_advection
       nonlinear_elasticity
       heat_conduction
+      heat_conduction_dmdc
       parametric_heat_conduction
       de_parametric_heat_conduction_greedy
       wave_equation
@@ -166,6 +167,7 @@ if (ENABLE_EXAMPLES)
       dmd
       dmd
       dmd
+      dmd
       dmd)
 
     list(LENGTH examples len1)