Add additional HTTP Methods

[AlexProgrammerDE]

Motivation:

Adds additional HTTP Methods from other RFCs.
I need this feature because WebDav extends the list of HTTP Method names and Http1RequestDecoder rejects unknown method names.
More information in the Discord: https://canary.discord.com/channels/1087271586832318494/1087272728177942629/1351931184451686420

Modifications:

• Added new HTTP Method names
• Switched to Type enum, so all http methods are enforced to have a status.

Result:

• Users will now be able to use more HTTP Methods for even more use-cases like WebDav.

[CLAassistant]

All committers have signed the CLA.

[github-actions]

🔍 Build Scan® (commit: d802923)

Job name	Status	Build Scan®
build-ubicloud-standard-16-jdk-8	❌ (failure)	https://ge.armeria.dev/s/5ryyl4ed5huda
build-ubicloud-standard-16-jdk-21-snapshot-blockhound	❌ (failure)	https://ge.armeria.dev/s/ndn56yocturhw
build-ubicloud-standard-16-jdk-17-min-java-17-coverage	❌ (failure)	https://ge.armeria.dev/s/qbjob3lrji742
build-ubicloud-standard-16-jdk-17-min-java-11	❌ (failure)	https://ge.armeria.dev/s/y5t4y5fh7p2wa
build-ubicloud-standard-16-jdk-17-leak	❌ (failure)	https://ge.armeria.dev/s/l3zqqhtsbiszq
build-ubicloud-standard-16-jdk-11	❌ (failure)	https://ge.armeria.dev/s/lstssvqzpqxrc
build-macos-latest-jdk-21	❌ (failure)	https://ge.armeria.dev/s/ftq7txbejsoza

[AlexProgrammerDE]

Maintainers prefer a different approach: https://canary.discord.com/channels/1087271586832318494/1351931184451686420/1353634957129678848

[trustin]

This pull request has been superseded by #6172