[SPARK-3891][SQL] Add array support to percentile, percentile_approx and constant inspectors support

Supported passing array to percentile and percentile_approx UDAFs
To support percentile_approx,  constant inspectors are supported for GenericUDAF
Constant folding support added to CreateArray expression

Author: Venkata Ramana G <ramana.gollamudi@huawei.com>
 `children.map(toInspector)` instead, we should always get the ObjectInspector via expression. Sorry it's a legacy bug in my PR.