build

Moved elliptic trucation routines from ectrans to fiat #2

Job	Run time
ci (Release, linux gnu-10)	13m 42s
ci (Release, linux clang-12)	14m 25s
ci (Release, linux nvhpc-21.9)	7m 54s
ci (Release, linux intel-classic)	9m 48s
ci (Release, macos)	1s
ci (Debug, linux gnu-10)	13m 8s
ci (Debug, linux clang-12)	14m 40s
ci (Debug, linux nvhpc-21.9)	7m 19s
ci (Debug, linux intel-classic)	9m 12s
ci (Debug, macos)	1s
	1h 30m 10s

Provide feedback