Rename the coins folder to networks (#583)

* Rename the coins folder to networks

Ethereum isn't a coin. It's a network.

Resolves #357.

* More renames of coins -> networks in orchestration

* Correct paths in tests/

* cargo fmt

networks/monero/ringct/bulletproofs/src/plus/mod.rs

@@ -0,0 +1,81 @@
+#![allow(non_snake_case)]
+
+use std_shims::sync::OnceLock;
+
+use curve25519_dalek::{constants::ED25519_BASEPOINT_POINT, scalar::Scalar, edwards::EdwardsPoint};
+
+use monero_generators::{H, Generators};
+
+pub(crate) use crate::{scalar_vector::ScalarVector, point_vector::PointVector};
+
+pub(crate) mod transcript;
+pub(crate) mod weighted_inner_product;
+pub(crate) use weighted_inner_product::*;
+pub(crate) mod aggregate_range_proof;
+pub(crate) use aggregate_range_proof::*;
+
+pub(crate) fn padded_pow_of_2(i: usize) -> usize {
+  let mut next_pow_of_2 = 1;
+  while next_pow_of_2 < i {
+    next_pow_of_2 <<= 1;
+  }
+  next_pow_of_2
+}
+
+#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
+pub(crate) enum GeneratorsList {
+  GBold,
+  HBold,
+}
+
+#[derive(Clone, Debug)]
+pub(crate) struct BpPlusGenerators {
+  g_bold: &'static [EdwardsPoint],
+  h_bold: &'static [EdwardsPoint],
+}
+
+include!(concat!(env!("OUT_DIR"), "/generators_plus.rs"));
+
+impl BpPlusGenerators {
+  #[allow(clippy::new_without_default)]
+  pub(crate) fn new() -> Self {
+    let gens = GENERATORS();
+    BpPlusGenerators { g_bold: &gens.G, h_bold: &gens.H }
+  }
+
+  pub(crate) fn len(&self) -> usize {
+    self.g_bold.len()
+  }
+
+  pub(crate) fn g() -> EdwardsPoint {
+    H()
+  }
+
+  pub(crate) fn h() -> EdwardsPoint {
+    ED25519_BASEPOINT_POINT
+  }
+
+  pub(crate) fn generator(&self, list: GeneratorsList, i: usize) -> EdwardsPoint {
+    match list {
+      GeneratorsList::GBold => self.g_bold[i],
+      GeneratorsList::HBold => self.h_bold[i],
+    }
+  }
+
+  pub(crate) fn reduce(&self, generators: usize) -> Self {
+    // Round to the nearest power of 2
+    let generators = padded_pow_of_2(generators);
+    assert!(generators <= self.g_bold.len());
+
+    BpPlusGenerators { g_bold: &self.g_bold[.. generators], h_bold: &self.h_bold[.. generators] }
+  }
+}
+
+// Returns the little-endian decomposition.
+fn u64_decompose(value: u64) -> ScalarVector {
+  let mut bits = ScalarVector::new(64);
+  for bit in 0 .. 64 {
+    bits[bit] = Scalar::from((value >> bit) & 1);
+  }
+  bits
+}