Build with Python 3.10

[PrasadBabarendaGamage]

To build OpenCMISS with Python 3.10, the following file needs to be updated to add Python 3.10 to the required Python version list:

https://github.com/OpenCMISS/cmake_modules/tree/develop/Modules/FindPython/Support.cmake

if (_${_PYTHON_PREFIX}_REQUIRED_VERSION_MAJOR EQUAL "3")
  set(_${_PYTHON_PREFIX}_VERSIONS 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
elseif (_${_PYTHON_PREFIX}_REQUIRED_VERSION_MAJOR EQUAL "2")
  set(_${_PYTHON_PREFIX}_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0)
else()
  message (FATAL_ERROR "FindPython: INTERNAL ERROR")
endif()