General improvements (#34)

* Minor improvements

* Fix `Debug` implementation

* Fix de-serialization

* Fix accidental usage of nightly

* Fix MSRV warning

* Replace macro with derive-where

* Add `rust-version` into `Cargo.toml`

* Move Serde trait implementation macro to `serialization` module

* Add ability to test without a Ristretto backend

* Improve docs

* Fix testing multiple backends together

* Implement `Ord` and `PartialOrd`

* `no_std` by default

* Remove unnecessary `doc_cfg`

* Remove dev-dependency on self

* Implement `Ord` and `PartialOrd` for `InternalError`

* Remove base64 encoding for serde

* Only take references

* Remove unnecessary qualifications from super-trait times

src/tests/parser.rs

@@ -5,7 +5,9 @@
 // License, Version 2.0 found in the LICENSE-APACHE file in the root directory
 // of this source tree.
 
-use alloc::string::String;
+use alloc::string::{String, ToString};
+use alloc::vec::Vec;
+use alloc::{format, vec};
 
 pub(crate) fn rfc_to_json(input: &str) -> String {
     format!("{{\n{}\n}}", parse_ciphersuites(input))
@@ -20,7 +22,7 @@ fn parse_ciphersuites(input: &str) -> String {
     for caps in re.captures_iter(input) {
         let ciphersuite = format!(
             "\"{}\": {{ {} }}",
-            caps["ciphersuite"].to_string(),
+            &caps["ciphersuite"],
             parse_modes(chunks[count])
         );
         ciphersuites.push(ciphersuite);
@@ -39,7 +41,7 @@ fn parse_modes(input: &str) -> String {
     for caps in re.captures_iter(input) {
         let mode = format!(
             "\"{}\": [\n {} \n]",
-            caps["mode"].to_string(),
+            &caps["mode"],
             parse_vectors(chunks[count])
         );
         modes.push(mode);