Replaced tclap submodule with CPM.

.gitmodules

Applications/CLI/CMakeLists.txt

Applications/Utils/FileConverter/CMakeLists.txt

Applications/Utils/GeoTools/CMakeLists.txt

Applications/Utils/MeshEdit/CMakeLists.txt

Applications/Utils/MeshGeoTools/CMakeLists.txt

Applications/Utils/ModelPreparation/CMakeLists.txt

...tions/Utils/ModelPreparation/PartitionMesh/CMakeLists.txt

Applications/Utils/OGSFileConverter/CMakeLists.txt

Applications/Utils/PostProcessing/CMakeLists.txt

Applications/Utils/SWMMConverter/CMakeLists.txt

Applications/Utils/SimpleMeshCreation/CMakeLists.txt

CMakeLists.txt

Tests/xdmfdiff/CMakeLists.txt

ThirdParty/tclap

scripts/cmake/Find.cmake

scripts/cmake/SubmoduleSetup.cmake