feat: load ca certs from memory

* Fixed up tests to work with the ca certs.
* Polykey generated certs now work with CA.

* Related #9

[ci skip]

Author: tegefaulkes

index.d.ts

@@ -132,7 +132,7 @@ export function retry(scid: Uint8Array, dcid: Uint8Array, newScid: Uint8Array, t
 export function versionIsSupported(version: number): boolean
 export class Config {
   constructor()
-  static withBoringSslCtx(certPem?: Uint8Array | undefined | null, keyPem?: Uint8Array | undefined | null, supportedKeyAlgos?: string | undefined | null): Config
+  static withBoringSslCtx(certPem?: Uint8Array | undefined | null, keyPem?: Uint8Array | undefined | null, supportedKeyAlgos?: string | undefined | null, caCertPem?: Uint8Array | undefined | null): Config
   loadCertChainFromPemFile(file: string): void
   loadPrivKeyFromPemFile(file: string): void
   loadVerifyLocationsFromFile(file: string): void

src/native/napi/config.rs

@@ -102,7 +102,7 @@ impl Config {
     // Processing CA certificate
     if let Some(ca_cert_pem) = ca_cert_pem {
       let x509_certs = boring::x509::X509::stack_from_pem(
-        &cert_pem.to_vec()
+        &ca_cert_pem.to_vec()
       ).or_else(
         |err| Err(Error::from_reason(err.to_string()))
       )?;