Add encryption support

[richardhopton]

Closes #5

to use encryption set encryptionKey when constructing the connection, i.e.:-

new Connection({
  port: 6053,
  host: "192.168.0.118",
  encryptionKey: "AhRqG3VpkVs2xzu7MOGQlqF4cc52oprT129ezc1+9FE=",
})

Specifying the optional expectedServerName will verify that the server you connect to is the server you expected.

Everything else just works.

[twocolors]

BIG Thx!!!

[twocolors]

oh this hame some bug
if you enable log - lost connect and will be slow ...
in logs

[11:19:38][C][ota:097]:   Using Password.
[11:19:38][C][api:138]: API Server:
[11:19:38][C][api:139]:   Address: esp32-test.local:6053
[11:19:38][C][api:141]:   Using noise encryption: YES
[11:20:27][W][api.connection:083]: @2colors/esphome-native-api 1.2.0 (192.168.0.15): Connection closed
[11:20:57][D][api:102]: Accepted 192.168.0.15
[11:20:57][W][api.connection:071]: 192.168.0.15: Socket operation failed: SOCKET_READ_FAILED errno=104

in test.js

[C][ota:093]: Over-The-Air Updates:
[C][api:138]: API Server:
[C][api:139]:   Address: esp32-test.local:6053
C:\Users\free\Downloads\esphome-native-api\lib\utils\NoiseFrameHelper.js:70
            throw new Error(
            ^

Error: Unknown protocol selected by server 213
    at NoiseFrameHelper.handleHello (C:\Users\free\Downloads\esphome-native-api\lib\utils\NoiseFrameHelper.js:70:19)
    at NoiseFrameHelper.onData (C:\Users\free\Downloads\esphome-native-api\lib\utils\NoiseFrameHelper.js:57:33)
    at Socket.<anonymous> (C:\Users\free\Downloads\esphome-native-api\lib\utils\NoiseFrameHelper.js:15:47)
    at Socket.emit (node:events:513:28)
    at addChunk (node:internal/streams/readable:324:12)
    at readableAddChunk (node:internal/streams/readable:297:9)
    at Readable.push (node:internal/streams/readable:234:10)
    at TCP.onStreamRead (node:internal/stream_base_commons:190:23)

Node.js v18.12.1

• Noise handshake (deserialize) must catch in events error / unhandledData

[twocolors]

after 5-7 min

{
  address: 181149788762884,
  name: 'ATC_CF7304',
  rssi: -73,
  serviceUuidsList: [],
  serviceDataList: [ { uuid: '0x181A', legacyDataList: [Array], data: '' } ],
  manufacturerDataList: [],
  addressType: 0
}
{
  address: 181149781089244,
  name: 'ATC_5A5BDC',
  rssi: -85,
  serviceUuidsList: [],
  serviceDataList: [ { uuid: '0x181A', legacyDataList: [Array], data: '' } ],
  manufacturerDataList: [],
  addressType: 0
}
C:\Users\free\Downloads\esphome-native-api\lib\utils\NoiseFrameHelper.js:70
            throw new Error(
            ^

Error: Unknown protocol selected by server 205
    at NoiseFrameHelper.handleHello (C:\Users\free\Downloads\esphome-native-api\lib\utils\NoiseFrameHelper.js:70:19)

new connect will be (work restart esp32)

$ node ./test.js
Device info: {
  usesPassword: false,
  name: 'esp32-test',
  macAddress: '9C:9C:1F:C4:E2:34',
  esphomeVersion: '2023.3.2',
  compilationTime: 'Apr  3 2023, 11:09:01',
  model: 'esp32dev',
  hasDeepSleep: false,
  projectName: '',
  projectVersion: '',
  webserverPort: 80,
  bluetoothProxyVersion: 1,
  manufacturer: 'Espressif',
  friendlyName: ''
}
Error: sendMessage timeout
    at Timeout.<anonymous> (C:\Users\free\Downloads\esphome-native-api\lib\connection.js:186:20)
    at listOnTimeout (node:internal/timers:564:17)
    at process.processTimers (node:internal/timers:507:7)