Add file to build SISSO++ for coverage tests

cmake/toolchains/intel_coverage.cmake

+###############
+# Basic Flags #
+###############
+set(CMAKE_CXX_COMPILER icpc CACHE STRING "")
+set(CMAKE_C_COMPILER icc CACHE STRING "")
+set(CMAKE_CXX_FLAGS "-O3 -xhost -prof-gen=srcpos" CACHE STRING "")
+
+#################
+# Feature Flags #
+#################
+set(BUILD_PARAMS ON CACHE BOOL "")
+set(BUILD_PYTHON ON CACHE BOOL "")
+set(BUILD_TESTS ON CACHE BOOL "")