Parity with Node/Deno

[sgammon]

We should endeavor to make the JS CLI/REPL behave as closely to Node and Deno as possible, or, rather, the expectations now established by Node. This list is a living issue on the way to that support:

• Host-side imports should work without much ceremony on the REPL
• Import statements don't work (same as Node), so we should emit a message about that
• Console methods aren't bridged (except for info) #153
• See: Missing intrinsics runtime#42

[sgammon]

superseded by #804