Support built-in forecast function through UDTF for tree model

[ycycse]

As title. It's similar to forecast table function in table model

[codecov]

Codecov Report

❌ Patch coverage is 1.57480% with 125 lines in your changes missing coverage. Please review.
✅ Project coverage is 38.72%. Comparing base (18cd382) to head (bd908ab).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...he/iotdb/db/queryengine/plan/udf/UDTFForecast.java	0.00%	125 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #15682      +/-   ##
============================================
- Coverage     38.73%   38.72%   -0.02%     
  Complexity      207      207              
============================================
  Files          4983     4984       +1     
  Lines        329969   330095     +126     
  Branches      41942    41957      +15     
============================================
+ Hits         127827   127841      +14     
- Misses       202142   202254     +112     

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[sonarqubecloud]

Quality Gate passed

Issues
30 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sonarqubecloud]

Quality Gate passed

Issues
30 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud