Add precision control for search function by adding round_decimal parameter for Java SDK

[elfisworking]

python sdk has supported precision control control when search. That feature should be added to java sdk.

[elfisworking]

i has wrote code to python sdk that add precision control function. I think maybe i can also do it for java SDK

[elfisworking]

/assign elfisworking

[yhmo]

Great. It is a valuable feature.

[yhmo]

@elfisworking The java sdk for v2.0 is basically ready. You can create a pull request once you have a solution to add precision control.