HTTP Protocol should only transpile a valid method

[StartAutomating]

Currently, the HTTP Protocol transpiler will allow any word to be the "method", that is:

get https://github.com/
notamethod https://github.com/ 

are both considered "valid" input for the transpiler, and would produce code like:

Invoke-RestMethod https://github.com/ -Method get
Invoke-RestMethod https://github.com/ -Method notamethod

Since HTTPs methods are well known, the HTTP transpiler should only transpile "get", but not "notamethod"