Added encoder

[thekingofspace]

*Added a encoder to encode all these

  <select id="method" class="round">
    <option value="0" selected>Binary</option>
    <option value="1">Keyboard Shift</option>
    <option value="2">Base64</option>
    <option value="3">Caesar Cipher</option>
    <option value="4">Enigma Machine</option>
    <option value="5">Letter to Number</option>
    <option value="6">Morse Code</option>
    <option value="7">Hexadecimal</option>
    <option value="8">URL Encoding</option>
    <option value="9">ROT13</option>
    <option value="10">Vigenère Cipher</option>
  </select>

Status

• Code changes have been tested against the Discord API and the discord.js wrapper, or there are no code changes
• Documentation has been added/modified, or there is nothing to change (docs/mods.json)

Semantic versioning classification:

• This PR changes DBM's interface (methods or parameters added to default methods)
• This PR only includes non-code changes, like changes to documentation, README, etc.