refactor: use rocksdb_wrapper::write_batch_put to reimplement incr

[levy5307]

What problem does this PR solve?

use rocksdb_wrapper::write_batch_put to reimplement incr

There are a lot of function tests in test_incr.cpp.

• Manual test (add detailed scripts or steps below)

>>> use temp
OK
>>> incr a b 0
0

app_id          : 2
partition_index : 4
decree          : 5
server          : 10.232.55.210:34802
>>> get a b 
"0"

app_id          : 2
partition_index : 4
server          : 10.232.55.210:34802
>>> incr a b 1
1

app_id          : 2
partition_index : 4
decree          : 6
server          : 10.232.55.210:34802
>>> get a b 
"1"

app_id          : 2
partition_index : 4
server          : 10.232.55.210:34802
>>> incr a b 5
6

app_id          : 2
partition_index : 4
decree          : 7
server          : 10.232.55.210:34802
>>> get a b 
"6"

app_id          : 2
partition_index : 4
server          : 10.232.55.210:34802