Function check_encoding

cpp/quantize/test_bolt.cpp:118–127

}

void check_encoding(int nrows, const RowMatrix<uint8_t>& encoding_out) {
    for (int i = 0; i < nrows; i++) {
        for(int m = 0; m < 2 * M; m++) {
            // indices are packed into upper and lower 4 bits
            int byte = encoding_out(i, m / 2);
            int idx = m % 2 ? byte >> 4 : byte & 0x0F;
            REQUIRE(idx == m + (i % 5)); // i % 5 from how we designed mat
        }
    }
}

TEST_CASE("bolt_encode", "[mcq][bolt]") {
    auto centroids = create_bolt_centroids(1);