[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>
Nit: remove the space before `ex`