[I] [Feature][SDK] Transform support STR_TO_MAP() function [inlong]

["emptyOVO (via GitHub)" <gi...@apache.org>]

emptyOVO opened a new issue, #11216:
URL: https://github.com/apache/inlong/issues/11216

   ### Description
   
   * parent issue: #10796 
   * from flinksql: https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/functions/systemfunctions/#string-functions
   * STR_TO_MAP(string1[, string2, string3])--Returns a map after splitting the string1 into key/value pairs using delimiters. string2 is the pair delimiter, default is ‘,’. And string3 is the key-value delimiter, default is ‘=’. Both pair delimiter and key-value delimiter are treated as regular expressions. So special characters (e.g. <([{\^-=$!|]})?*+.>) need to be properly escaped before using as a delimiter literally.
   
   ### Use case
   
   `STR_TO_MAP('item1:10,item2:5,item3:2', ':', ',')--{'item1' -> 10, 'item2' -> 5, 'item3' -> 2}`
   
   ### Are you willing to submit PR?
   
   - [X] Yes, I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
   


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