npm package: fix --bin (#467)

The `--bin` CLI flag was not producing bytecode because the
`outputSelection` was not updated to explicitly requested it.

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>

js/resolc/src/index.ts

@@ -111,7 +111,7 @@ export async function compile(
       optimizer,
       outputSelection: {
         '*': {
-          '*': ['abi'],
+          '*': ['abi', 'evm.bytecode'],
         },
       },
     },