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ARROW-7216: [Java] Improve the performance of setting/clearing individual bits

Setting/clearing individual bits are key operations for Arrow. In this issue, we improve the performance these operations by:

1. replacing arithmetic operations with bit-wise operations
2. remove unnecessary casts between int/byte
3. provide new API to remove the if branch

Benchmark results show that for clearing a bit, the performance improve by 11%, and for general set/clear operation, the performance improve by 4.7%:

before:
BitVectorHelperBenchmarks.setValidityBitBenchmark avgt 5 4.524 ± 0.015 us/op

after:
BitVectorHelperBenchmarks.setValidityBitBenchmark avgt 5 4.313 ± 0.011 us/op
BitVectorHelperBenchmarks.setValidityBitToZeroBenchmark avgt 5 4.020 ± 0.016 us/op

Closes #5872 from liyafan82/fly_1120_clear and squashes the following commits:

cb745b5bc <liyafan82>  Discuss the reason for duplicate logic
aec3b0462 <liyafan82>  Use better method names
58b9735f8 <liyafan82>  Improve the performance of setting/clearing individual bits

Authored-by: liyafan82 <fan_li_ya@foxmail.com>
Signed-off-by: Micah Kornfield <emkornfield@gmail.com>