Initial documentation for the Monero libraries (#122)

* Document all features

* Largely document the Monero libraries

Relevant to https://github.com/serai-dex/serai/issues/103 and likely 
sufficient to get this removed from 
https://github.com/serai-dex/serai/issues/102.

crypto/dalek-ff-group/Cargo.toml

@@ -8,6 +8,9 @@ authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["curve25519", "ed25519", "ristretto", "dalek", "group"]
 edition = "2021"
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 rand_core = "0.6"
 digest = "0.10"

crypto/dleq/Cargo.toml

@@ -7,6 +7,9 @@ repository = "https://github.com/serai-dex/serai"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 edition = "2021"
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 thiserror = "1"
 rand_core = "0.6"

crypto/ed448/Cargo.toml

@@ -8,6 +8,9 @@ authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["ed448", "ff", "group"]
 edition = "2021"
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 lazy_static = "1"
 

crypto/frost/Cargo.toml

@@ -8,6 +8,9 @@ authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["frost", "multisig", "threshold"]
 edition = "2021"
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 thiserror = "1"
 

crypto/multiexp/Cargo.toml

@@ -8,6 +8,9 @@ authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["multiexp", "ff", "group"]
 edition = "2021"
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 zeroize = { version = "1.3", features = ["zeroize_derive"] }
 

crypto/transcript/Cargo.toml

@@ -8,6 +8,9 @@ authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["transcript"]
 edition = "2021"
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 digest = "0.10"