Correct code

[dsuponitskiy]

1. src/binfhe/include/rgsw-cryptoparameters.h: in RingGSWCryptoParams()
   instead of "if ((method == LMKCDEY) & (numAutoKeys == 0))" there should be "if ((method == LMKCDEY) && (numAutoKeys == 0))"
2. utils/exception.h: make all get functions const for OpenFHEException
3. FindInVector() is defined in 2 different classes: DiscreteGaussianGeneratorImpl and in BaseSampler.
4. src/pke/lib/encoding/packedencoding.cpp: bool PackedEncoding::Encode(): "size_t i;" is declared twice outside of the loop in this function. Should not be outside the corresponding loops
5. Change the name COMPRESSION_LEVEL (constants.h) to Camel case
6. Add either NOT_SET or INVALID_VALUE to all enums in constants.h
7. • Add
     #include "math/hal/basicint.h" // for MAX_MODULUS_SIZE
     to constants.h and remove
     #include "math/math-hal.h"
     #include "lattice/constants-lattice.h"
   • Add #include "lattice/constants-lattice.h" to rlwe-cryptoparameters.h
8. See if we can replace the __builtin_*() functions with __FILE__, __LINE__ and __FUNCTION__ in OpenFHEException as the functions are available with gcc only