feat: add server random and master key fetch api

Author: theweakgod

.vscode/c_cpp_properties.json

@@ -1776,6 +1776,7 @@ ngx_http_lua_ffi_ssl_server_random(ngx_http_request_t *r,
     return NGX_OK;
 }
 
+
 int
 ngx_http_lua_ffi_ssl_session_master_key(ngx_http_request_t *r,
     unsigned char *out, size_t *outlen, char **err)