child_process: allow typed arrays for input

doc:    Update child_process docs, stating typed arrays are allowed.
error:  Update error message for `ERR_INVALID_SYNC_FORK_INPUT`
lib:    Use isArrayBufferView instead of isUint8Array
test:   Update test-child-process-spawnsync-input to test for all
        typed arrays and data view.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

Partially fixing #1826 (closed)