Text Formatting

[proRamLOGO]

Currently the app dosen't support text formatting. Add support for Text Formatting of messages. Following should be the function:

• Bold any text between 2 asterisk * characters like:
  * BOLD TEXT *
• Italicize any text between 2 underscore _ characters like:
  _ TEXT _
• Strikethrough any text between 2 tilde ~ characters like:
  ~ TEXT ~
• Monospace any text between three backticks ``` like:
  ``` TEXT ```

[proRamLOGO]

Monospace is left, rest 3 have been taken care of.