* 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
* Elliptic curve and Twisted curve templates - initial commit
* Support EC Add on G2 (Sextic Twisted curve for BN and BLS12 families)
* Refactor the config parser to prepare for elliptic coefficient support
* Add elliptic curve parameter for BN254 (Snarks), BLS12-381 and Zexe curve BLS12-377
* Add accessors to curve parameters
* Allow computing the right-hand-side of of Weierstrass equation "y² = x³ + a x + b"
* Randomized test infrastructure for elliptic curves
* Start a testing suite on ellptic curve addition (failing)
* detail projective addition
* Fix EC addition test (forgot initializing Z=1 and that there ar emultiple infinity points)
* Test with random Z coordinate + add elliptic curve test to test suite
* fix reference to the (deactivated) addchain inversion for BN curves [skip ci]
* .nims file leftover [skip ci]
