macOS compatibility + cleaning

• Lazy.h has been modified so that it can be compiled with AppleClang.
• OSX.cmake has been updated for my mac. It has been renamed maclam.cmake (the name of my mac).
• References to disable-trilinos.cmake have been removed.
• Old .cmake files such as spring.cmake or codeblocks.cmake have been removed.
• new cmake files have been created: use-intel-compiler.cmake and use-clang-compiler.cmake.

requested review from @acrovato

assigned to @R.Boman

approved this merge request

added 3 commits

• 864c60a2 - rename OSX => maclam
• 192d1791 - remove unused FindXXX.cmake
• af19f7ab - cleaning among .cmake files

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approved this merge request

merged