Release version for v2.0.0 container

New v2.0.0 container. Container is now built with Spack, and provides both a "fat" builder version, and a slim "release" version.

cmake/options.cmake

-################################################################################
-## CMAKE Settings 
-################################################################################
-## make sure that the default is RELEASE
-if (NOT CMAKE_BUILD_TYPE)
-  set (CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
-      "Choose the type of build, options are: None Debug Release RelWithDebInfo."
-      FORCE)
-endif ()
-## Offer the user the choice of overriding the installation directories
-set(INSTALL_LIB_DIR lib CACHE PATH "Installation directory for libraries")
-set(INSTALL_BIN_DIR bin CACHE PATH "Installation directory for executables")
-set(INSTALL_INCLUDE_DIR include/${PROJECT_NAME} CACHE PATH "Installation directory for header files")
-set(INSTALL_MODULE_DIR ${CMAKE_INSTALL_PREFIX}/../../etc/modulefiles CACHE PATH "Installation directory for module files")
-set(INSTALL_BIND_PATH "/net" "/group" "/cache" "/work" "/volatile" CACHE PATH "Installation singularity bind path")
-if(WIN32 AND NOT CYGWIN)
-  set(DEF_INSTALL_CMAKE_DIR cmake)
-else()
-  set(DEF_INSTALL_CMAKE_DIR lib/cmake/${PROJECT_NAME})
-endif()
-set(INSTALL_CMAKE_DIR ${DEF_INSTALL_CMAKE_DIR} CACHE PATH
-  "Installation directory for cmake files")
-## Make relative paths absolute (useful when auto-generating cmake configuration
-## files) Note: not including INSTALL_BIND_PATH on purpose as we should be giving absolute
-## paths anyway
-foreach(p LIB BIN INCLUDE CMAKE MODULE)
-  set(var INSTALL_${p}_DIR)
-  if(NOT IS_ABSOLUTE "${${var}}")
-    set(${var} "${CMAKE_INSTALL_PREFIX}/${${var}}")
-  endif()
-endforeach()
-## extra cmake modules
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} 
-  "${PROJECT_SOURCE_DIR}/cmake/")