[SEDONA-287] Introduce SedonaContext to unify Sedona entry points

[jiayuasu]

Did you read the Contributor Guide?

• Yes, I have read Contributor Rules and Contributor Development Guide

Is this PR related to a JIRA ticket?

• Yes, the URL of the associated JIRA ticket is https://issues.apache.org/jira/browse/SEDONA-287. The PR name follows the format [SEDONA-287] my subject.

What changes were proposed in this PR?

1. Introducing a new entry point called SedonaContext to unify all Sedona entry points in different compute engines and deprecate old Sedona register entry points. Users no longer have to register Sedona kryo serializer and import many tedious Python classes.
2. Together with this PR, a new Spark Spark python dir called sedona.spark is also introduced. It imports all essential Sedona Python classes so the users can simply call from sedona.spark import * to import everything in one line of code.

Note that: this does not prevent any existing Sedona users from upgrading to the new version. We can remove the deprecated entry pointss after several major releases.

Sedona Spark

Scala

import org.apache.sedona.spark.SedonaContext

val sedona = SedonaContext.create(SedonaContext.builder().master("local[*]").getOrCreate())

sedona.sql("SELECT ST_GeomFromWKT(XXX) FROM")

Python

from sedona.spark import *

config = SedonaContext.builder() .\
    config('spark.jars.packages',
           'org.apache.sedona:sedona-spark-shaded-3.0_2.12:1.4.1,'
           'org.datasyslab:geotools-wrapper:1.4.0-28.2'). \
    getOrCreate()

sedona = SedonaContext.create(config)

sedona.sql("SELECT ST_GeomFromWKT(XXX) FROM")

Sedona Flink

import org.apache.sedona.flink.SedonaContext

StreamTableEnvironment sedona = SedonaContext.create(env, tableEnv);

sedona.sqlQuery("SELECT ST_GeomFromWKT(XXX) FROM")

How was this patch tested?

Passed existing unit tests

Did this PR include necessary documentation updates?

• Yes, I am adding a new API. I am using the current SNAPSHOT version number in since vX.Y.Z format.