This allows resources to be "streams" by implementing read/write/shutdown. These streams are implicit since their nature (read/write/duplex) isn't known until called, but we could easily add another method to explicitly tag resources as streams.
`op_read/op_write/op_shutdown` are now builtin ops provided by `deno_core`
Note: this current implementation is simple & straightforward but it results in an additional alloc per read/write call
Closes #12556
These are confusing. They say they are "for users that don't care about
permissions", but that isn't correct. `NoTimersPermissions` disables
permissions instead of enabling them.
I would argue that implementors should decide what permissions they want
themselves, and not take our opinionated permissions struct.
