Add partial udf：String/condition/math built-in functions

[xinyual]

Description

In this PR we add several UDFs and UDAFs. We add implement for functions which exist in both index PPL and Spark PPL from #3310.

1. For those we can find corresponding function in calcite built-in functions, we map it and do some arguments modification if needed.
2. For those we cannot find corresponding function in calcite built-in functions, we follow the design in [FEATURE] Calcite Engine Framework: General function (UDF/UDAF) framework #3310 to implement it.
3. We add standalone UT.

Briefly, we implement all math/string/condition functions list in #3310 plus percentile and take aggregation.

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

• New functionality includes testing.
• New functionality has been documented.
• New functionality has javadoc added.
• New functionality has a user manual doc added.
• API changes companion pull request created.
• Commits are signed per the DCO using --signoff.
• Public documentation issue/PR created.

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[LantaoJin]

1. Rename the title to include what kind functions this PR added.
2. Add CalcitePPLBuiltinFunctionTest extends CalcitePPLAbstractTest for UT (this is important to check the plan generated by Calcite, example in Implement ppl join command with Calcite #3364)
3. Add more ITs refer the PPL query cases in https://github.com/opensearch-project/opensearch-spark/blob/main/integ-test/src/integration/scala/org/opensearch/flint/spark/ppl/FlintSparkPPLBuiltinFunctionITSuite.scala and other FlintSparkPPLXXFunctionITSuite

[LantaoJin]

@xinyual can we close this?

[xinyual]

We already have separate PR for them. So I close this PR.