Add Subject Field to Verify Token

Full Changelog: v0.1.1...v0.2.0

Updates & Code Improvements

v0.1.1

Some Code Improvements

v0.1.0 First Stable Release

Features

• Send Messages
• Send Verify Code (Package's feature)
• Validate Verify Code (Package's feature)
• Check Balance

v0.0.1 Send.lk python SDK Beta Release

Support Functions

• Sending SMS
• OTP/Verify SMS Code