Review annotationChunk in DRL10Parser.g4

[tkobayas]

chunk in DRL10Parser.g4 may eat greedy and doesn't provide an appropriate error.

for example) a test case candidate

    @Test
    void annotationChunk() {
        final String drl = "rule sales\n" +
                "@department('sales')\n" +
                "wrongattribute \"hey\"\n" +
                "when\n" +
                "    $s : String( this == 'fireRules' )\n" +
                "then\n" +
                "    list.add(kcontext.getRule().getName());\n" +
                "end";
        final PackageDescr pkg = parseAndGetPackageDescrWithoutErrorCheck(drl);
        assertThat(parser.hasErrors()).isTrue();
        assertThat(parser.getErrors().get(0).getMessage()).contains("'wrongattribute'");
    }