Implement `secp256k1`-related syscalls for the native syscall handler

[igaray]

The secp256k1-related syscalls are marked as todo! in the NativeSyscallHandler implementation.

https://github.com/lambdaclass/starknet_in_rust/pull/943/files#diff-050b376c364b46aa56077588d77a5939973603c9caf47e452bc0895b5b6cd161R217

• [ ] secp256k1_add
• [ ] secp256k1_get_point_from_x
• [ ] secp256k1_get_xy
• [ ] secp256k1_mul
• [ ] secp256k1_new
• [ ] secp256r1_add
• [ ] secp256r1_get_point_from_x
• [ ] secp256r1_get_xy
• [ ] secp256r1_mul
• [ ] secp256r1_new

[juanbono]

For implementing this one we require secp256k1 and secp256r1 curves in Lambdaworks.