* Some cleaning, CBT example, fix mod switch and add LUT correctness test to BR test
* finished trait cleaning
* removed trait aliastoutside of backend
* Added compressed serialization for GLWECiphertext + Ciphertext decompression
* Added compressed serialization for GGLWECiphertext & GLWESwitchingkey
* generalized automorphism test
* Removed ops on scalar_znx, replaced by as_vec_znx/as_vec_znx_mut and then call op on vec_znx
* Added tests for automorphism key encryption
* Added tensorkey compressed
* added ggsw compressed
