molecularDynamics: Consolidated into a single library

This simplifies the directory structure and resolves some name clashes
with other parts of OpenFOAM.

applications/utilities/preProcessing/mdInitialise/Make/options

@@ -1,18 +1,13 @@
 EXE_INC = \
     -I$(LIB_SRC)/meshTools/lnInclude \
     -I$(LIB_SRC)/polyTopoChange/lnInclude \
-    -I$(LIB_SRC)/lagrangian/molecularDynamics/molecule/lnInclude \
-    -I$(LIB_SRC)/lagrangian/molecularDynamics/potential/lnInclude \
-    -I$(LIB_SRC)/lagrangian/molecularDynamics/molecularMeasurements/lnInclude \
+    -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/lagrangian/basic/lnInclude \
-    -I$(LIB_SRC)/finiteVolume/lnInclude
+    -I$(LIB_SRC)/lagrangian/molecularDynamics/lnInclude
 
 EXE_LIBS = \
     -lmeshTools \
     -lpolyTopoChange \
     -lfiniteVolume \
     -llagrangian \
-    -lmolecule \
-    -lpotential \
-    -lmolecularMeasurements
-
+    -lmolecularDynamics

applications/utilities/preProcessing/mdInitialise/mdInitialise.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2023 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2024 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,7 @@ Description
 \*---------------------------------------------------------------------------*/
 
 #include "argList.H"
-#include "md.H"
+#include "moleculeCloud.H"
 
 using namespace Foam;