Implement NIP-19 bech32-encoded private and public keys

https://github.com/nostr-protocol/nips/blob/master/19.md

sig/vendor/faye/websocket/api.rbs

@@ -0,0 +1,45 @@
+# Added only to satisfy the Steep requirements. Not 100% reliable.
+module Faye
+  class WebSocket
+    module API
+      CONNECTING: Integer
+      OPEN: Integer
+      CLOSING: Integer
+      CLOSED: Integer
+      CLOSE_TIMEOUT: Integer
+
+      @driver: untyped
+      @ping: nil
+      @ping_id: Integer
+      @stream: nil
+      @proxy: nil
+      @ping_timer: nil
+      @close_timer: nil
+      @close_params: [String, Integer]?
+      @onerror: nil
+      @onclose: nil
+      @onmessage: nil
+      @onopen: nil
+
+      attr_reader url: untyped
+      attr_reader ready_state: Integer
+      attr_reader buffered_amount: Integer
+
+      def initialize: (?Hash[untyped, untyped] options) -> void
+      def write: (untyped data) -> untyped
+      def send: (untyped message) -> false
+      def ping: (?String message) -> false
+      def close: (?nil code, ?nil reason) -> untyped
+      def protocol: -> String
+
+      private
+
+      def open: -> nil
+      def receive_message: (untyped data) -> nil
+      def emit_error: (untyped message) -> nil
+      def begin_close: (String reason, Integer code, ?Hash[untyped, untyped] options) -> nil
+      def finalize_close: -> nil
+      def parse: (untyped data) -> untyped
+    end
+  end
+end

sig/vendor/faye/websocket/client.rbs

@@ -0,0 +1,43 @@
+# Added only to satisfy the Steep requirements. Not 100% reliable.
+module Faye
+  class WebSocket
+    class Client
+      DEFAULT_PORTS: Hash[String, Integer]
+      SECURE_PROTOCOLS: [String, String]
+
+      include EventEmitter
+      include API
+
+      @url: untyped
+      @endpoint: untyped
+      @origin_tls: Hash[untyped, untyped]
+      @socket_tls: Hash[untyped, untyped]
+      @driver: bot
+      @proxy: nil
+      @ssl_verifier: untyped
+      @stream: untyped
+
+      def initialize: (untyped url, ?Array[String] protocols, ?Hash[untyped, untyped] options) -> void
+
+      private
+
+      def configure_proxy: (Hash[untyped, untyped] proxy) -> nil
+      def start_tls: (untyped uri, Hash[untyped, untyped] options) -> nil
+      def on_connect: (untyped stream) -> untyped
+      def on_network_error: (nil error) -> untyped
+      def ssl_verify_peer: (untyped cert) -> untyped
+      def ssl_handshake_completed: -> untyped
+
+      module Connection
+        attr_accessor parent: bot
+
+        def connection_completed: -> untyped
+        def ssl_verify_peer: (untyped cert) -> untyped
+        def ssl_handshake_completed: -> untyped
+        def receive_data: (untyped data) -> untyped
+        def unbind: (?nil error) -> untyped
+        def write: (untyped data) -> nil
+      end
+    end
+  end
+end