CD toggle

Now you can **enable or disable constraint dynamics** in your calculations.
Additional line (#5) was added into input file to store this parameter in binary form (0 or 1). Unfortunately, that makes previous input files incompatible with newer version.
Variable *CD_flag* is read from input file and then copied into device memory variable *dCD_flag*. Disabling constraint dynamics gives slight calculation speedup, because it skips few texture reads.