Add first basic geometry classes for new module

.gitmodules

modules/CMakeLists.txt

modules/camera/CMakeLists.txt

modules/camera/README.md

modules/camera/config/GLM.cmake

modules/geometry/CMakeLists.txt

modules/geometry/README.md

modules/geometry/config/GLM.cmake

modules/geometry/include/vkcv/geometry/Cuboid.hpp

modules/geometry/include/vkcv/geometry/Geometry.hpp

modules/geometry/include/vkcv/geometry/Sphere.hpp

modules/geometry/include/vkcv/geometry/Volume.hpp

modules/geometry/lib/glm

modules/geometry/src/vkcv/geometry/Cuboid.cpp

modules/geometry/src/vkcv/geometry/Geometry.cpp

modules/geometry/src/vkcv/geometry/Sphere.cpp

modules/geometry/src/vkcv/geometry/Volume.cpp

modules/scene/include/vkcv/scene/MeshPart.hpp

modules/scene/src/vkcv/scene/MeshPart.cpp