Make additional OpenFHE methods available in python

[dsuponitskiy]

void EvalAddInPlace(Ciphertext& ciphertext, double scalar);
void EvalSubInPlace(ciphertext, plaintext);

and 2 functions from globals.h:
void EnablePrecomputeCRTTablesAfterDeserializaton();
void DisablePrecomputeCRTTablesAfterDeserializaton();