Before this commit, cpt.py attempted `"3.11.1" < "3.4.3"`, but this
incorrectly returns `True`. This commit adds a function that splits the
string into version identifiers and checks them all individually.

The dependency added in the previous commit is not actually necessary,
as it's implicit from the BUILD_BYPRODUCTS of ExternalProject_Add, the
real issue was only that Vdt has SSE enabled by default, and on ARM that
causes problems. This disables the option that adds -msse to CXXFLAGS,
and lets Vdt inherit the C++ compiler and flags from ROOT instead
(including any architecture-specific and optimization flags).

* Support different architectures for evaluation (fNet) and for training (deenet)

* Fixes for Cuda in CopyDiffArch

* More fixes for CUDA

* Support now the section of architecture (CPU or GPU or Standard) at run time and not anymore compile time

valarray triggers lots of symbols to be emitted during startup.

This reverts commit 2859675c.

This resolves ROOT-9374.

and add two missing copyright statements.

Adapt all concerned files:
- Code
- Tests
- Tutorials
- CMakeLists.txt
- Selection files

Older versions of CMake (e.g. 3.7.0) fail to configure without it.

GCC 4.x has bugs with -O3/-Ofast that break TGeo.

Before, cling::CIFactory was deciding on those flags, but libCling
was always compiled in release mode. Instead, pick the flags from libCore.