feat(proto): improve BCE in int decoding

[tdakkota]

name                          old speed      new speed      delta
ColBool_Raw_DecodeColumn-4    9.25GB/s ± 2%  9.30GB/s ± 2%     ~     (p=0.056 n=15+15)
ColBool_DecodeColumn-4         735MB/s ± 3%   741MB/s ± 1%   +0.70%  (p=0.011 n=14+14)
ColDate32_DecodeColumn-4      2.39GB/s ± 1%  2.91GB/s ± 2%  +21.66%  (p=0.000 n=14+14)
ColDate_DecodeColumn-4        1.27GB/s ± 1%  1.57GB/s ± 0%  +23.32%  (p=0.000 n=14+12)
ColDateTime64_DecodeColumn-4  4.39GB/s ± 2%  5.21GB/s ± 2%  +18.57%  (p=0.000 n=15+15)
ColDateTime_DecodeColumn-4    2.40GB/s ± 1%  2.89GB/s ± 4%  +20.26%  (p=0.000 n=14+14)
ColDecimal128_DecodeColumn-4  3.02GB/s ± 2%  3.02GB/s ± 3%     ~     (p=0.983 n=14+15)
ColDecimal256_DecodeColumn-4  4.20GB/s ± 2%  4.19GB/s ± 3%     ~     (p=0.880 n=14+15)
ColDecimal32_DecodeColumn-4   2.41GB/s ± 1%  2.90GB/s ± 2%  +20.32%  (p=0.000 n=12+13)
ColDecimal64_DecodeColumn-4   4.39GB/s ± 4%  5.21GB/s ± 2%  +18.63%  (p=0.000 n=14+15)
ColEnum16_DecodeColumn-4      1.27GB/s ± 2%  1.56GB/s ± 2%  +22.26%  (p=0.000 n=14+15)
ColEnum8_DecodeColumn-4       1.39GB/s ± 3%  1.41GB/s ± 0%   +1.52%  (p=0.000 n=14+12)
ColFixedStr_DecodeColumn-4    14.1GB/s ± 1%  14.1GB/s ± 1%   -0.20%  (p=0.050 n=14+14)
ColFloat32_DecodeColumn-4     2.41GB/s ± 1%  2.89GB/s ± 2%  +20.19%  (p=0.000 n=14+15)
ColFloat64_DecodeColumn-4     4.40GB/s ± 1%  5.24GB/s ± 1%  +18.95%  (p=0.000 n=14+13)
ColInt128_DecodeColumn-4      3.01GB/s ± 3%  3.00GB/s ± 3%     ~     (p=0.158 n=15+14)
ColInt16_DecodeColumn-4       1.27GB/s ± 3%  1.55GB/s ± 2%  +21.98%  (p=0.000 n=15+15)
ColInt256_DecodeColumn-4      4.21GB/s ± 2%  4.20GB/s ± 4%     ~     (p=0.946 n=14+14)
ColInt32_DecodeColumn-4       2.41GB/s ± 1%  2.92GB/s ± 0%  +21.04%  (p=0.000 n=14+12)
ColInt64_DecodeColumn-4       4.40GB/s ± 2%  5.18GB/s ± 5%  +17.86%  (p=0.000 n=15+14)
ColInt8_DecodeColumn-4        1.40GB/s ± 1%  1.40GB/s ± 1%     ~     (p=0.726 n=14+14)
ColIPv4_DecodeColumn-4        2.41GB/s ± 0%  2.91GB/s ± 2%  +20.57%  (p=0.000 n=12+14)
ColIPv6_DecodeColumn-4        2.85GB/s ± 3%  2.93GB/s ± 2%   +2.66%  (p=0.000 n=14+15)
ColRaw_DecodeColumn-4         14.5GB/s ± 2%  14.6GB/s ± 2%     ~     (p=0.905 n=14+13)
ColStr_DecodeColumn-4          588MB/s ± 0%   549MB/s ± 3%   -6.64%  (p=0.000 n=12+15)
ColTuple_DecodeColumn-4       8.92GB/s ± 3%  8.95GB/s ± 2%     ~     (p=0.323 n=14+14)
ColUInt128_DecodeColumn-4     3.00GB/s ± 2%  3.00GB/s ± 2%     ~     (p=0.621 n=14+15)
ColUInt16_DecodeColumn-4      1.28GB/s ± 1%  1.56GB/s ± 0%  +22.50%  (p=0.000 n=15+12)
ColUInt256_DecodeColumn-4     4.21GB/s ± 3%  4.22GB/s ± 2%     ~     (p=0.880 n=15+14)
ColUInt32_DecodeColumn-4      2.42GB/s ± 0%  2.92GB/s ± 0%  +20.78%  (p=0.000 n=12+12)
ColUInt64_DecodeColumn-4      4.40GB/s ± 2%  5.23GB/s ± 2%  +18.89%  (p=0.000 n=15+14)
ColUInt8_DecodeColumn-4       7.76GB/s ± 2%  7.81GB/s ± 2%     ~     (p=0.141 n=14+13)
ColUUID_DecodeColumn-4        4.36GB/s ± 3%  4.37GB/s ± 1%     ~     (p=0.893 n=14+5)