code split completed

for parallel calculations P[n][k] calculated from P[n-1][k] and
P[n-2][k]
for cases
a) P[n][n-1]  predetermined value
b) P[n][n-2] predetermined value * SinTetta
that allow to split calculations in parallel == amount threads == amount
of CPU cores
Also added normalized Cnk Snk calculations - (not much better result -
but just in case)