Support for procedure method override

[jlalmes]

Originally posted by @KATT in https://github.com/trpc/trpc/discussions/1936#discussioncomment-2818345

Bonus, allow for method overriding

I made this tweet yesterday and the main feedback that came back was to be able to sometimes have massive bodies when doing queries.

// interpret as query, even if it's a post
POST http://localhost?type=query

_T-70

Funding

• You can sponsor this specific effort via a Polar.sh pledge below
• We receive the pledge once the issue is completed & verified