[Feature] Support for nested fields (Structs, Arrays and Maps)

[ejblanco]

What type of PR is this：

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Which issues of this PR fixes ：

Fixes #

Problem Summary(Required) ：

We have added support for both reading and writing nested fields such as structs, arrays and maps in Starrocks.

Currenlty you have to pass the columnType when using it:

        String columnTypes = "iidentifier STRUCT<type STRING, phone BIGINT, datetime TIMESTAMP>, arr_col ARRAY<INT>, map_struct_col MAP<STRING, STRUCT<type STRING, phone BIGINT, datetime TIMESTAMP>>";
        df.write().format("starrocks")
              .option("starrocks.column.types", columnTypes)

We can work on it to improve anything needed

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr will affect users' behaviors
• This pr needs user documentation (for new or modified features or behaviors)
• I have added documentation for my new feature or new function

[CelerData-Reviewer]

@codex review