* Clear cofactor in BN254 G2 testgen and frobenius
* Implement G2 endomorphism acceleration in Sage
* Somewhat working accelerated scalar mul G2 (2.2x) faster
- OK for BN254_Snarks
- Some test failing for BLS12-381
* Fix negative miniscalars by adding an extra bit of encoding
* Cleanup accel params
* Small recoding optimizations
* Add MultiScalar recoding from "Efficient and Secure Algorithms for GLV-Based Scalar Multiplication" by Faz et al
* precompute cube root of unity - Add VM precomputation of Fp - workaround upstream bug https://github.com/nim-lang/Nim/issues/14585
* Add the φ-accelerated lookup table builder
* Add a dedicated bithacks file
* cosmetic import consistency
* Build the φ precompute table with n-1 EC additions instead of 2^(n-1) additions
* remove binary
* Add the GLV precomputations to the sage scripts
* You can't avoid it, bigint multiplication is needed at one point
* Add bigint multiplication discarding some low words
* Implement the lattice decomposition in sage
* Proper decomposition for BN254
* Prepare the code for a new scalar mul
* We compile, and now debugging hunt
* More helpers to debug GLV scalar Mul
* Fix conditional negation
* Endomorphism accelerated scalar mul working for BN254 curve
* Implement endomorphism acceleration for BLS12-381 (needed cofactor clearing of the point)
* fix nimble test script after bench rename
* Add sage script for BN254
* Implement (failing) scalar multiplication tests
* Add a first test against sagemath
* Finish the tests against SAGE for BN254
* Add significant test coverage of scalar multiplication with reference checks for BN254_Snarks and BLS12_381
Mamy Ratsimbazafy