draft of maps + modifier tpsa
Merge branch 'ffi' of https://github.com/ldeniau/mad into ffi

Conflicts:
	src/lib/tpsa-ffi/tpsa.c
more maps
print TPSA in same format as Berz
Merge branch 'master' of github.com:ldeniau/mad
changed Berz print to use scientific format
Merge 'element' from branch 'ffi'