feat(Message#Reply): Added the new reply.

[fagnersales]

Please describe the changes this PR makes and why it should be merged:
Brings the new reply into Message#Reply.

Changes made by me and @Nathankayk

Status

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating

Semantic versioning classification:

• This PR changes the library's interface (methods or parameters added)
  • This PR includes breaking changes (methods removed or renamed, parameters moved or removed)
• This PR only includes non-code changes, like changes to documentation, README, etc.

[vaporoxx]

#4874 is already implementing the new reply feature.